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Finding the Third Proportional to 5,429.25 and 8,202.38

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Solution

The third proportional to 5,429.25 and 8,202.38 is: 12,391.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.25 : 8,202.38 = 8,202.38 : x
  2. Step 2: Convert to fraction form
    5,429.25/8,202.38 = 8,202.38/x
  3. Step 3: Cross multiply
    5,429.25x = 8,202.38 × 8,202.38
  4. Step 4: Simplify right side
    5,429.25x = 67,278,955.64
  5. Step 5: Solve for x
    x = 67,278,955.64/5,429.25
  6. Step 6: Final answer
    x = 12,391.94

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.