Question

if 16:x:: 18:72 find x​

Answer 1

Step-by-step explanation:

(16)(72)=(18)(x)

x = 64

Answer 2

x = 64

Step-by-step explanation:

We have,

16 : x : : 18 : 72

To find, the value of x = ?

∴16 : x : : 18 : 72

We know that,

If a, b, c and d are in proportion.

a : b : : c : d

∴ a × d = b × c

Here, a = 16, b = x, c = 18 and d = 72

∴ x × 18 = 16 × 72

⇒ x = $\dfrac{16 \times 72}{18}$

⇒ x = 16 × 4

⇒ x = 64

Thus, the value of "x is equal to 64".