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Finding the Fourth Proportional to 8,732.80, 13,099.20 and 5,233.60

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Solution

The fourth proportional to 8,732.80, 13,099.20 and 5,233.60 is: 7,850.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,732.80 : 13,099.20 = 5,233.60 : x
  2. Step 2: Convert to fraction form
    8,732.80/13,099.20 = 5,233.60/x
  3. Step 3: Cross multiply
    8,732.80x = 13,099.20 × 5,233.60
  4. Step 4: Simplify right side
    8,732.80x = 68,555,973.12
  5. Step 5: Solve for x
    x = 68,555,973.12/8,732.80
  6. Step 6: Final answer
    x = 7,850.40

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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.