Home / 8,721.20-13,079.97-2,876.44

Finding the Fourth Proportional to 8,721.20, 13,079.97 and 2,876.44

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Solution

The fourth proportional to 8,721.20, 13,079.97 and 2,876.44 is: 4,314.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.20 : 13,079.97 = 2,876.44 : x
  2. Step 2: Convert to fraction form
    8,721.20/13,079.97 = 2,876.44/x
  3. Step 3: Cross multiply
    8,721.20x = 13,079.97 × 2,876.44
  4. Step 4: Simplify right side
    8,721.20x = 37,623,748.91
  5. Step 5: Solve for x
    x = 37,623,748.91/8,721.20
  6. Step 6: Final answer
    x = 4,314.06

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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.