Home / 18,400.20-27,612.39-10,086.10

Finding the Fourth Proportional to 18,400.20, 27,612.39 and 10,086.10

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Solution

The fourth proportional to 18,400.20, 27,612.39 and 10,086.10 is: 15,135.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,400.20 : 27,612.39 = 10,086.10 : x
  2. Step 2: Convert to fraction form
    18,400.20/27,612.39 = 10,086.10/x
  3. Step 3: Cross multiply
    18,400.20x = 27,612.39 × 10,086.10
  4. Step 4: Simplify right side
    18,400.20x = 278,501,257.75
  5. Step 5: Solve for x
    x = 278,501,257.75/18,400.20
  6. Step 6: Final answer
    x = 15,135.77

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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.