Home / 18,129.42-27,192.11-5,649.85

Finding the Fourth Proportional to 18,129.42, 27,192.11 and 5,649.85

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Solution

The fourth proportional to 18,129.42, 27,192.11 and 5,649.85 is: 8,474.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,129.42 : 27,192.11 = 5,649.85 : x
  2. Step 2: Convert to fraction form
    18,129.42/27,192.11 = 5,649.85/x
  3. Step 3: Cross multiply
    18,129.42x = 27,192.11 × 5,649.85
  4. Step 4: Simplify right side
    18,129.42x = 153,631,348.42
  5. Step 5: Solve for x
    x = 153,631,348.42/18,129.42
  6. Step 6: Final answer
    x = 8,474.15

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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.