Home / 10,872.18-15,003.36-6,394.95

Finding the Fourth Proportional to 10,872.18, 15,003.36 and 6,394.95

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Solution

The fourth proportional to 10,872.18, 15,003.36 and 6,394.95 is: 8,824.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,872.18 : 15,003.36 = 6,394.95 : x
  2. Step 2: Convert to fraction form
    10,872.18/15,003.36 = 6,394.95/x
  3. Step 3: Cross multiply
    10,872.18x = 15,003.36 × 6,394.95
  4. Step 4: Simplify right side
    10,872.18x = 95,945,737.03
  5. Step 5: Solve for x
    x = 95,945,737.03/10,872.18
  6. Step 6: Final answer
    x = 8,824.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.