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Finding the Third Proportional to 8,807.91 and 13,640.91

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Solution

The third proportional to 8,807.91 and 13,640.91 is: 21,125.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,807.91 : 13,640.91 = 13,640.91 : x
  2. Step 2: Convert to fraction form
    8,807.91/13,640.91 = 13,640.91/x
  3. Step 3: Cross multiply
    8,807.91x = 13,640.91 × 13,640.91
  4. Step 4: Simplify right side
    8,807.91x = 186,074,323.32
  5. Step 5: Solve for x
    x = 186,074,323.32/8,807.91
  6. Step 6: Final answer
    x = 21,125.83

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.