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Finding the Third Proportional to 8,553.09 and 18,708.47

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Solution

The third proportional to 8,553.09 and 18,708.47 is: 40,921.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,553.09 : 18,708.47 = 18,708.47 : x
  2. Step 2: Convert to fraction form
    8,553.09/18,708.47 = 18,708.47/x
  3. Step 3: Cross multiply
    8,553.09x = 18,708.47 × 18,708.47
  4. Step 4: Simplify right side
    8,553.09x = 350,006,802.97
  5. Step 5: Solve for x
    x = 350,006,802.97/8,553.09
  6. Step 6: Final answer
    x = 40,921.66

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.