Home / 8,721.20-13,083.24-4,337.84

Finding the Fourth Proportional to 8,721.20, 13,083.24 and 4,337.84

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Solution

The fourth proportional to 8,721.20, 13,083.24 and 4,337.84 is: 6,507.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.20 : 13,083.24 = 4,337.84 : x
  2. Step 2: Convert to fraction form
    8,721.20/13,083.24 = 4,337.84/x
  3. Step 3: Cross multiply
    8,721.20x = 13,083.24 × 4,337.84
  4. Step 4: Simplify right side
    8,721.20x = 56,753,001.80
  5. Step 5: Solve for x
    x = 56,753,001.80/8,721.20
  6. Step 6: Final answer
    x = 6,507.48

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1.5x scale

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.