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Finding the Third Proportional to 8,557.03 and 18,387.28

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Solution

The third proportional to 8,557.03 and 18,387.28 is: 39,510.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,557.03 : 18,387.28 = 18,387.28 : x
  2. Step 2: Convert to fraction form
    8,557.03/18,387.28 = 18,387.28/x
  3. Step 3: Cross multiply
    8,557.03x = 18,387.28 × 18,387.28
  4. Step 4: Simplify right side
    8,557.03x = 338,092,111.77
  5. Step 5: Solve for x
    x = 338,092,111.77/8,557.03
  6. Step 6: Final answer
    x = 39,510.44

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.