Find the fourth proportional to the numbers 8, 36, 6. – InterviewSolution

1.

Find the fourth proportional to the numbers 8, 36, 6.

Answer»

Let the fourth number be x

Then,

= 8: 36:: 6: x

We know that,

Product of extremes = product of means

∴ 8 × x = 36 × 6

= 8x = 216

= x = 216/8

= x = 27

Hence, x = 27

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