Home / 8,489.20-12,731.10-4,046.26

Finding the Fourth Proportional to 8,489.20, 12,731.10 and 4,046.26

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Solution

The fourth proportional to 8,489.20, 12,731.10 and 4,046.26 is: 6,068.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,489.20 : 12,731.10 = 4,046.26 : x
  2. Step 2: Convert to fraction form
    8,489.20/12,731.10 = 4,046.26/x
  3. Step 3: Cross multiply
    8,489.20x = 12,731.10 × 4,046.26
  4. Step 4: Simplify right side
    8,489.20x = 51,513,340.69
  5. Step 5: Solve for x
    x = 51,513,340.69/8,489.20
  6. Step 6: Final answer
    x = 6,068.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.