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Finding the Fourth Proportional to 15,999.76, 24,008.28 and 7,791.76

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Solution

The fourth proportional to 15,999.76, 24,008.28 and 7,791.76 is: 11,691.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,999.76 : 24,008.28 = 7,791.76 : x
  2. Step 2: Convert to fraction form
    15,999.76/24,008.28 = 7,791.76/x
  3. Step 3: Cross multiply
    15,999.76x = 24,008.28 × 7,791.76
  4. Step 4: Simplify right side
    15,999.76x = 187,066,755.77
  5. Step 5: Solve for x
    x = 187,066,755.77/15,999.76
  6. Step 6: Final answer
    x = 11,691.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.