Question

Find the value of 'x' if the numbers are in proportion. 12:16 : : x :28​

Answer 1

Answer:

the above equation can also be wrtten as :

12/16=x/28

Cross multiplication comes into play :

12×28=16×x

336=16×x

336÷16=x

21=x

HOPE THIS HELPED YOU , MATE

Answer 2

Given:

A proportion 12:16 :: x:28.

To Find:

The value of x that satisfies the above proportion is?

Solution:

The given problem can be solved using the concepts of ratios and proportions.

1. The given proportion is 12:16::x:28.

2. Consider a proportion a:b::c:d, the numbers a, b and c, d are said to be in proportion only when the ratio of a and b is equal to the ratio of c and d.

=> a,b and c,d are in proportion only when a:b = c:d.

3. Using the property mentioned above,

=> The ratio of 12 and 16 must be equal to the ratio of x and 28.

=> 12 : 16 = x : 28,

=> (12/16) = (x/28),

=> (3/4) = (x/28),

=> 3 = (x/7),

=> x = 21.

Therefore, the value of x is 21.