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Finding the Fourth Proportional to 8,760.92, 12,089.34 and 4,984.88

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Solution

The fourth proportional to 8,760.92, 12,089.34 and 4,984.88 is: 6,878.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,760.92 : 12,089.34 = 4,984.88 : x
  2. Step 2: Convert to fraction form
    8,760.92/12,089.34 = 4,984.88/x
  3. Step 3: Cross multiply
    8,760.92x = 12,089.34 × 4,984.88
  4. Step 4: Simplify right side
    8,760.92x = 60,263,909.18
  5. Step 5: Solve for x
    x = 60,263,909.18/8,760.92
  6. Step 6: Final answer
    x = 6,878.72

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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.