Home / 18,120.75-27,177.99-4,793.91

Finding the Fourth Proportional to 18,120.75, 27,177.99 and 4,793.91

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Solution

The fourth proportional to 18,120.75, 27,177.99 and 4,793.91 is: 7,190.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120.75 : 27,177.99 = 4,793.91 : x
  2. Step 2: Convert to fraction form
    18,120.75/27,177.99 = 4,793.91/x
  3. Step 3: Cross multiply
    18,120.75x = 27,177.99 × 4,793.91
  4. Step 4: Simplify right side
    18,120.75x = 130,288,838.04
  5. Step 5: Solve for x
    x = 130,288,838.04/18,120.75
  6. Step 6: Final answer
    x = 7,190.04

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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.