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Finding the Fourth Proportional to 8,791.60, 13,158.60 and 6,833.20

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Solution

The fourth proportional to 8,791.60, 13,158.60 and 6,833.20 is: 10,227.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.60 : 13,158.60 = 6,833.20 : x
  2. Step 2: Convert to fraction form
    8,791.60/13,158.60 = 6,833.20/x
  3. Step 3: Cross multiply
    8,791.60x = 13,158.60 × 6,833.20
  4. Step 4: Simplify right side
    8,791.60x = 89,915,345.52
  5. Step 5: Solve for x
    x = 89,915,345.52/8,791.60
  6. Step 6: Final answer
    x = 10,227.42

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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.