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Finding the Third Proportional to 9,115.03 and 19,917.14

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Solution

The third proportional to 9,115.03 and 19,917.14 is: 43,520.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115.03 : 19,917.14 = 19,917.14 : x
  2. Step 2: Convert to fraction form
    9,115.03/19,917.14 = 19,917.14/x
  3. Step 3: Cross multiply
    9,115.03x = 19,917.14 × 19,917.14
  4. Step 4: Simplify right side
    9,115.03x = 396,692,490.68
  5. Step 5: Solve for x
    x = 396,692,490.68/9,115.03
  6. Step 6: Final answer
    x = 43,520.69

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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.