Concept explainers
a.
To calculate: The fourth proportion
a.
Answer to Problem 12CR
The fourth proportion is
Explanation of Solution
Given:
The measures of first three terms in a proportion are
Calculation:
Let the fourth proportion be x
Conclusion: Hence, the fourth proportion is
b.
To calculate: The mean proportional between
b.
Answer to Problem 12CR
The mean proportional between
Explanation of Solution
Given:
First term =
Last term =
Concept used:
Here, we are using the formula:
(Where, “ b ” is middle term)
Calculation:
Here,
(Where, “ b ” is middle term)
Conclusion: Hence, the mean proportional between
Chapter 12 Solutions
Geometry For Enjoyment And Challenge
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