Question

Find a in following proportion

7 : 12 : : a : 24​

Answer 1

Answer:

7/12 = a/24

7×24 = 12×a

a = 7 × 24 / 12

a = 7× 2

a = 14

Answer 2

Step-by-step explanation:

Given that : 7 : 12 : : a : 24

Product of means = 12×a=12a

product of extremes = 7×24 = 168

Since they are in the proportion,

Product of means = Product of extremes

=> 12a = 168

=> a = 168/12

=>a =14

The value of a = 14

The equality of ratios is called proportion.

If a,b,c,d are in proportion ,bc=ad

symbol for proportion is :: is as