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Finding the Fourth Proportional to 8,760.08, 12,089.16 and 4,982.78

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Solution

The fourth proportional to 8,760.08, 12,089.16 and 4,982.78 is: 6,876.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,760.08 : 12,089.16 = 4,982.78 : x
  2. Step 2: Convert to fraction form
    8,760.08/12,089.16 = 4,982.78/x
  3. Step 3: Cross multiply
    8,760.08x = 12,089.16 × 4,982.78
  4. Step 4: Simplify right side
    8,760.08x = 60,237,624.66
  5. Step 5: Solve for x
    x = 60,237,624.66/8,760.08
  6. Step 6: Final answer
    x = 6,876.38

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1.5x scale

Why These Related Problems?

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