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Finding the Fourth Proportional to 8,802, 13,209.12 and 3,607.92

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Solution

The fourth proportional to 8,802, 13,209.12 and 3,607.92 is: 5,414.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,802 : 13,209.12 = 3,607.92 : x
  2. Step 2: Convert to fraction form
    8,802/13,209.12 = 3,607.92/x
  3. Step 3: Cross multiply
    8,802x = 13,209.12 × 3,607.92
  4. Step 4: Simplify right side
    8,802x = 47,657,448.23
  5. Step 5: Solve for x
    x = 47,657,448.23/8,802
  6. Step 6: Final answer
    x = 5,414.39

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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.