Home / 18,737.70-28,110.24-5,589.78

Finding the Fourth Proportional to 18,737.70, 28,110.24 and 5,589.78

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Solution

The fourth proportional to 18,737.70, 28,110.24 and 5,589.78 is: 8,385.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,737.70 : 28,110.24 = 5,589.78 : x
  2. Step 2: Convert to fraction form
    18,737.70/28,110.24 = 5,589.78/x
  3. Step 3: Cross multiply
    18,737.70x = 28,110.24 × 5,589.78
  4. Step 4: Simplify right side
    18,737.70x = 157,130,057.35
  5. Step 5: Solve for x
    x = 157,130,057.35/18,737.70
  6. Step 6: Final answer
    x = 8,385.77

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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.