Home / 18,132.78-27,191.91-5,648.70

Finding the Fourth Proportional to 18,132.78, 27,191.91 and 5,648.70

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Solution

The fourth proportional to 18,132.78, 27,191.91 and 5,648.70 is: 8,470.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,132.78 : 27,191.91 = 5,648.70 : x
  2. Step 2: Convert to fraction form
    18,132.78/27,191.91 = 5,648.70/x
  3. Step 3: Cross multiply
    18,132.78x = 27,191.91 × 5,648.70
  4. Step 4: Simplify right side
    18,132.78x = 153,598,942.02
  5. Step 5: Solve for x
    x = 153,598,942.02/18,132.78
  6. Step 6: Final answer
    x = 8,470.79

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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.