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Finding the Fourth Proportional to 8,760.68, 12,089.88 and 5,225.96

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Solution

The fourth proportional to 8,760.68, 12,089.88 and 5,225.96 is: 7,211.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,760.68 : 12,089.88 = 5,225.96 : x
  2. Step 2: Convert to fraction form
    8,760.68/12,089.88 = 5,225.96/x
  3. Step 3: Cross multiply
    8,760.68x = 12,089.88 × 5,225.96
  4. Step 4: Simplify right side
    8,760.68x = 63,181,229.28
  5. Step 5: Solve for x
    x = 63,181,229.28/8,760.68
  6. Step 6: Final answer
    x = 7,211.91

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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.