Home / 18,202.43-25,124.11-11,134.78

Finding the Fourth Proportional to 18,202.43, 25,124.11 and 11,134.78

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Solution

The fourth proportional to 18,202.43, 25,124.11 and 11,134.78 is: 15,368.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,202.43 : 25,124.11 = 11,134.78 : x
  2. Step 2: Convert to fraction form
    18,202.43/25,124.11 = 11,134.78/x
  3. Step 3: Cross multiply
    18,202.43x = 25,124.11 × 11,134.78
  4. Step 4: Simplify right side
    18,202.43x = 279,751,346.90
  5. Step 5: Solve for x
    x = 279,751,346.90/18,202.43
  6. Step 6: Final answer
    x = 15,368.90

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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.