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Finding the Fourth Proportional to 7,350, 11,009.40 and 5,503.92

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Solution

The fourth proportional to 7,350, 11,009.40 and 5,503.92 is: 8,244.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,350 : 11,009.40 = 5,503.92 : x
  2. Step 2: Convert to fraction form
    7,350/11,009.40 = 5,503.92/x
  3. Step 3: Cross multiply
    7,350x = 11,009.40 × 5,503.92
  4. Step 4: Simplify right side
    7,350x = 60,594,856.85
  5. Step 5: Solve for x
    x = 60,594,856.85/7,350
  6. Step 6: Final answer
    x = 8,244.20

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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.