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Finding the Third Proportional to 7,137.56 and 15,805.13

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Solution

The third proportional to 7,137.56 and 15,805.13 is: 34,998.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,137.56 : 15,805.13 = 15,805.13 : x
  2. Step 2: Convert to fraction form
    7,137.56/15,805.13 = 15,805.13/x
  3. Step 3: Cross multiply
    7,137.56x = 15,805.13 × 15,805.13
  4. Step 4: Simplify right side
    7,137.56x = 249,801,976.27
  5. Step 5: Solve for x
    x = 249,801,976.27/7,137.56
  6. Step 6: Final answer
    x = 34,998.22

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.