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Finding the Fourth Proportional to 8,772.47, 12,105.92 and 4,793.75

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Solution

The fourth proportional to 8,772.47, 12,105.92 and 4,793.75 is: 6,615.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.47 : 12,105.92 = 4,793.75 : x
  2. Step 2: Convert to fraction form
    8,772.47/12,105.92 = 4,793.75/x
  3. Step 3: Cross multiply
    8,772.47x = 12,105.92 × 4,793.75
  4. Step 4: Simplify right side
    8,772.47x = 58,032,669.50
  5. Step 5: Solve for x
    x = 58,032,669.50/8,772.47
  6. Step 6: Final answer
    x = 6,615.32

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.