Finding the Third Proportional to 7,695.75 and 11,939.63
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Solution
The third proportional to 7,695.75 and 11,939.63 is: 18,523.81
Step by Step Solution
- Step 1: Write the proportion equation
7,695.75 : 11,939.63 = 11,939.63 : x - Step 2: Convert to fraction form
7,695.75/11,939.63 = 11,939.63/x - Step 3: Cross multiply
7,695.75x = 11,939.63 × 11,939.63 - Step 4: Simplify right side
7,695.75x = 142,554,645.14 - Step 5: Solve for x
x = 142,554,645.14/7,695.75 - Step 6: Final answer
x = 18,523.81
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Why These Related Problems?
These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.