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Finding the Third Proportional to 4,951.13 and 8,115.19

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Solution

The third proportional to 4,951.13 and 8,115.19 is: 13,301.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,951.13 : 8,115.19 = 8,115.19 : x
  2. Step 2: Convert to fraction form
    4,951.13/8,115.19 = 8,115.19/x
  3. Step 3: Cross multiply
    4,951.13x = 8,115.19 × 8,115.19
  4. Step 4: Simplify right side
    4,951.13x = 65,856,268.16
  5. Step 5: Solve for x
    x = 65,856,268.16/4,951.13
  6. Step 6: Final answer
    x = 13,301.27

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.