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Finding the Third Proportional to 5,590.13 and 10,542.38

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Solution

The third proportional to 5,590.13 and 10,542.38 is: 19,881.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,590.13 : 10,542.38 = 10,542.38 : x
  2. Step 2: Convert to fraction form
    5,590.13/10,542.38 = 10,542.38/x
  3. Step 3: Cross multiply
    5,590.13x = 10,542.38 × 10,542.38
  4. Step 4: Simplify right side
    5,590.13x = 111,141,670.64
  5. Step 5: Solve for x
    x = 111,141,670.64/5,590.13
  6. Step 6: Final answer
    x = 19,881.79

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Why These Related Problems?

These problems maintain the same ratio (1.89) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.