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Finding the Third Proportional to 5,245.59 and 8,134.31

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Solution

The third proportional to 5,245.59 and 8,134.31 is: 12,613.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.59 : 8,134.31 = 8,134.31 : x
  2. Step 2: Convert to fraction form
    5,245.59/8,134.31 = 8,134.31/x
  3. Step 3: Cross multiply
    5,245.59x = 8,134.31 × 8,134.31
  4. Step 4: Simplify right side
    5,245.59x = 66,167,039.85
  5. Step 5: Solve for x
    x = 66,167,039.85/5,245.59
  6. Step 6: Final answer
    x = 12,613.83

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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.