Home / 18,004.92-27,002.77-12,381.43

Finding the Fourth Proportional to 18,004.92, 27,002.77 and 12,381.43

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Solution

The fourth proportional to 18,004.92, 27,002.77 and 12,381.43 is: 18,568.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,004.92 : 27,002.77 = 12,381.43 : x
  2. Step 2: Convert to fraction form
    18,004.92/27,002.77 = 12,381.43/x
  3. Step 3: Cross multiply
    18,004.92x = 27,002.77 × 12,381.43
  4. Step 4: Simplify right side
    18,004.92x = 334,332,906.56
  5. Step 5: Solve for x
    x = 334,332,906.56/18,004.92
  6. Step 6: Final answer
    x = 18,568.97

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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.