Home / 8,159.14-12,240.52-2,612.80

Finding the Fourth Proportional to 8,159.14, 12,240.52 and 2,612.80

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Solution

The fourth proportional to 8,159.14, 12,240.52 and 2,612.80 is: 3,919.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,159.14 : 12,240.52 = 2,612.80 : x
  2. Step 2: Convert to fraction form
    8,159.14/12,240.52 = 2,612.80/x
  3. Step 3: Cross multiply
    8,159.14x = 12,240.52 × 2,612.80
  4. Step 4: Simplify right side
    8,159.14x = 31,982,030.66
  5. Step 5: Solve for x
    x = 31,982,030.66/8,159.14
  6. Step 6: Final answer
    x = 3,919.78

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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.