Home / 18,256.10-27,373.68-7,149.78

Finding the Fourth Proportional to 18,256.10, 27,373.68 and 7,149.78

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Solution

The fourth proportional to 18,256.10, 27,373.68 and 7,149.78 is: 10,720.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,256.10 : 27,373.68 = 7,149.78 : x
  2. Step 2: Convert to fraction form
    18,256.10/27,373.68 = 7,149.78/x
  3. Step 3: Cross multiply
    18,256.10x = 27,373.68 × 7,149.78
  4. Step 4: Simplify right side
    18,256.10x = 195,715,789.79
  5. Step 5: Solve for x
    x = 195,715,789.79/18,256.10
  6. Step 6: Final answer
    x = 10,720.57

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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.