Finding the Third Proportional to 7,178.63 and 11,031.19
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Solution
The third proportional to 7,178.63 and 11,031.19 is: 16,951.31
Step by Step Solution
- Step 1: Write the proportion equation
7,178.63 : 11,031.19 = 11,031.19 : x - Step 2: Convert to fraction form
7,178.63/11,031.19 = 11,031.19/x - Step 3: Cross multiply
7,178.63x = 11,031.19 × 11,031.19 - Step 4: Simplify right side
7,178.63x = 121,687,097.66 - Step 5: Solve for x
x = 121,687,097.66/7,178.63 - Step 6: Final answer
x = 16,951.31
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Why These Related Problems?
These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.