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Finding the Third Proportional to 5,279 and 8,358.38

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Solution

The third proportional to 5,279 and 8,358.38 is: 13,234.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279 : 8,358.38 = 8,358.38 : x
  2. Step 2: Convert to fraction form
    5,279/8,358.38 = 8,358.38/x
  3. Step 3: Cross multiply
    5,279x = 8,358.38 × 8,358.38
  4. Step 4: Simplify right side
    5,279x = 69,862,432.64
  5. Step 5: Solve for x
    x = 69,862,432.64/5,279
  6. Step 6: Final answer
    x = 13,234.03

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.