Home / 18,591.75-25,657.99-11,519.55

Finding the Fourth Proportional to 18,591.75, 25,657.99 and 11,519.55

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Solution

The fourth proportional to 18,591.75, 25,657.99 and 11,519.55 is: 15,897.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,591.75 : 25,657.99 = 11,519.55 : x
  2. Step 2: Convert to fraction form
    18,591.75/25,657.99 = 11,519.55/x
  3. Step 3: Cross multiply
    18,591.75x = 25,657.99 × 11,519.55
  4. Step 4: Simplify right side
    18,591.75x = 295,568,469.91
  5. Step 5: Solve for x
    x = 295,568,469.91/18,591.75
  6. Step 6: Final answer
    x = 15,897.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.