Practice the questions given in the** **worksheet on basic problems on proportion. The questions are
related to find the unknown value of a given proportion, to verify the given
quantities form a proportion or not and mean proportion between two quantities.

**1.** **Find the value of x in each of the following proportions:**

(i) x : 4 = 6 : 8

(ii) 14 : x = 7 : 9

(iii) 4 : 6 = x : 18

(iv) 8 : 10 = x : 25

(v) 5 : 15 = 4 : x

(vi) 16 : 24 = 6 : x

**2. Check whether the
following quantities form a proportion or not:**

(i) 3x, 7x, 24 and 56

(ii) 0.4, 0.5, 2.9 and 3.5

(iii) 2½, 5½, 3.0 and 6.0

**3. Find x in the
following proportions:**

(i) x : 3 : : 57 : 19

(ii) 18 : x : : 27 : 3

(iii) 16 : 18 : : x : 96

(iv) 4 : 8 : : x : 16

(v) 5 : 35 : : x : 14

(vi) 10 : 15 : : 12 : x

**4. Find the mean
proportional between:**

(i) 0.9 and 2.5

(ii) 0.6 and 9.6

(iii) ¼ and 1/16

**5.** (i) If x : y =
2 : 3 and y : z = 5 : 7, find x : y : z.

(ii) If m : n = 4 : 9 and n : s = 3 : 7, find m : s.

Answers for the** **worksheet
on basic problems on proportion are given below to check the exact answers of
the above questions.

**Answers:**

**1.** (i) 3

(ii) 18

(iii) 12

(iv) 20

(v) 12

(vi) 9

**2.** (i) Yes

(ii) No

(iii) No

**3.** (i) 9

(ii) 2

(iii) 256/3

(iv) 8

(v) 2

(vi) 18

**4.** (i) 1.5

(ii) 2.4

(iii) 1/8

**5.** (i) 10 : 15 :
21

(ii) 4 : 21

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