Question

Find the fourthproportional 6,8 and 36

Answer 1

Hola!!

We know that when any four numbers are in proportion,

sum of extremes = sum of means

So, let the fourth proportional to 6,8 and 36 be x

Middle terms = 8 and 36

Extremes = 6 and x

Then,

6x = 36*8

x = (36*8)/6

x = 48

Hence the fourth proportional is 48.

Hope this helps!!

Answer 2

Answer : The fourth proportional is 48

Explanation :-

Given :

Find the fourth proportional 6,8 and 36

Let the fourth proportional be x

6 : 8 = 36 : x

6 and x are Extreme Terms

8 and 36 are Middle Terms

6 : 8 = 36 : x

$6 \times x = 8 \times 36$

$6x = 288$

$x = \dfrac{288}{6}$

x = 48

Hence, the fourth proportional is 48