Question : The fourth proportion of the numbers 8, 12, and 14 is:
Option 1: 15
Option 2: 18
Option 3: 24
Option 4: 21
Answer (1)
27th Jan, 2024
Correct Answer: 21
Solution :
Given: The numbers are 8, 12, and 14.
Let the fourth proportion be $x$.
So, $8:12::14:x$
⇒ $\frac{8}{12} = \frac{14}{x}$
⇒ $x = \frac{14 \times 12}{8}=21$
Hence, the correct answer is 21.
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