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Finding the Fourth Proportional to 7,469.92, 11,205.89 and 2,538.23

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Solution

The fourth proportional to 7,469.92, 11,205.89 and 2,538.23 is: 3,807.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,469.92 : 11,205.89 = 2,538.23 : x
  2. Step 2: Convert to fraction form
    7,469.92/11,205.89 = 2,538.23/x
  3. Step 3: Cross multiply
    7,469.92x = 11,205.89 × 2,538.23
  4. Step 4: Simplify right side
    7,469.92x = 28,443,113.48
  5. Step 5: Solve for x
    x = 28,443,113.48/7,469.92
  6. Step 6: Final answer
    x = 3,807.69

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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.