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Finding the Fourth Proportional to 18,227.87, 27,340.89 and 7,136.59

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Solution

The fourth proportional to 18,227.87, 27,340.89 and 7,136.59 is: 10,704.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,227.87 : 27,340.89 = 7,136.59 : x
  2. Step 2: Convert to fraction form
    18,227.87/27,340.89 = 7,136.59/x
  3. Step 3: Cross multiply
    18,227.87x = 27,340.89 × 7,136.59
  4. Step 4: Simplify right side
    18,227.87x = 195,120,627.05
  5. Step 5: Solve for x
    x = 195,120,627.05/18,227.87
  6. Step 6: Final answer
    x = 10,704.52

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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.