Home / 18,132.50-27,195.59-4,981.74

Finding the Fourth Proportional to 18,132.50, 27,195.59 and 4,981.74

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Solution

The fourth proportional to 18,132.50, 27,195.59 and 4,981.74 is: 7,471.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,132.50 : 27,195.59 = 4,981.74 : x
  2. Step 2: Convert to fraction form
    18,132.50/27,195.59 = 4,981.74/x
  3. Step 3: Cross multiply
    18,132.50x = 27,195.59 × 4,981.74
  4. Step 4: Simplify right side
    18,132.50x = 135,481,333.62
  5. Step 5: Solve for x
    x = 135,481,333.62/18,132.50
  6. Step 6: Final answer
    x = 7,471.74

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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.