Home / 18,218.20-27,334.17-7,132.81

Finding the Fourth Proportional to 18,218.20, 27,334.17 and 7,132.81

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Solution

The fourth proportional to 18,218.20, 27,334.17 and 7,132.81 is: 10,701.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218.20 : 27,334.17 = 7,132.81 : x
  2. Step 2: Convert to fraction form
    18,218.20/27,334.17 = 7,132.81/x
  3. Step 3: Cross multiply
    18,218.20x = 27,334.17 × 7,132.81
  4. Step 4: Simplify right side
    18,218.20x = 194,969,441.12
  5. Step 5: Solve for x
    x = 194,969,441.12/18,218.20
  6. Step 6: Final answer
    x = 10,701.90

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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.