Home / 8,781.18-13,160.14-4,612.66

Finding the Fourth Proportional to 8,781.18, 13,160.14 and 4,612.66

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Solution

The fourth proportional to 8,781.18, 13,160.14 and 4,612.66 is: 6,912.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.18 : 13,160.14 = 4,612.66 : x
  2. Step 2: Convert to fraction form
    8,781.18/13,160.14 = 4,612.66/x
  3. Step 3: Cross multiply
    8,781.18x = 13,160.14 × 4,612.66
  4. Step 4: Simplify right side
    8,781.18x = 60,703,206.94
  5. Step 5: Solve for x
    x = 60,703,206.94/8,781.18
  6. Step 6: Final answer
    x = 6,912.88

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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.