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Finding the Third Proportional to 7,950 and 18,372

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Solution

The third proportional to 7,950 and 18,372 is: 42,456.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,950 : 18,372 = 18,372 : x
  2. Step 2: Convert to fraction form
    7,950/18,372 = 18,372/x
  3. Step 3: Cross multiply
    7,950x = 18,372 × 18,372
  4. Step 4: Simplify right side
    7,950x = 337,530,384
  5. Step 5: Solve for x
    x = 337,530,384/7,950
  6. Step 6: Final answer
    x = 42,456.65

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.