Home / 11,154.90-16,737.18-4,227.78

Finding the Fourth Proportional to 11,154.90, 16,737.18 and 4,227.78

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Solution

The fourth proportional to 11,154.90, 16,737.18 and 4,227.78 is: 6,343.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,154.90 : 16,737.18 = 4,227.78 : x
  2. Step 2: Convert to fraction form
    11,154.90/16,737.18 = 4,227.78/x
  3. Step 3: Cross multiply
    11,154.90x = 16,737.18 × 4,227.78
  4. Step 4: Simplify right side
    11,154.90x = 70,761,114.86
  5. Step 5: Solve for x
    x = 70,761,114.86/11,154.90
  6. Step 6: Final answer
    x = 6,343.50

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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.