Finding the Third Proportional to 7,312.25 and 11,775.75
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Solution
The third proportional to 7,312.25 and 11,775.75 is: 18,963.83
Step by Step Solution
- Step 1: Write the proportion equation
7,312.25 : 11,775.75 = 11,775.75 : x - Step 2: Convert to fraction form
7,312.25/11,775.75 = 11,775.75/x - Step 3: Cross multiply
7,312.25x = 11,775.75 × 11,775.75 - Step 4: Simplify right side
7,312.25x = 138,668,288.06 - Step 5: Solve for x
x = 138,668,288.06/7,312.25 - Step 6: Final answer
x = 18,963.83
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Why These Related Problems?
These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.