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Finding the Fourth Proportional to 7,342.32, 11,003.12 and 5,691.12

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Solution

The fourth proportional to 7,342.32, 11,003.12 and 5,691.12 is: 8,528.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,342.32 : 11,003.12 = 5,691.12 : x
  2. Step 2: Convert to fraction form
    7,342.32/11,003.12 = 5,691.12/x
  3. Step 3: Cross multiply
    7,342.32x = 11,003.12 × 5,691.12
  4. Step 4: Simplify right side
    7,342.32x = 62,620,076.29
  5. Step 5: Solve for x
    x = 62,620,076.29/7,342.32
  6. Step 6: Final answer
    x = 8,528.65

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