Question
Download Solution PDFThe fourth proportion to 12, 18, 6 is equal to the third proportion to 4, k. What is the value of k?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
Fourth proportion to 12, 18, 6 is equal to the third proportion to 4, k.
Calculation:
According to the question
Let the fourth proportion be x
⇒ 12/18 = 6/x
⇒ x = (6 × 18)/12
⇒ x = 9
Now,
Third proportion is
⇒ 4/k = k/9
⇒ k2 = 36
⇒ k = 6
∴ The required value of k is 6
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