Home / 18,229.50-25,158.56-11,154.56

Finding the Fourth Proportional to 18,229.50, 25,158.56 and 11,154.56

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Solution

The fourth proportional to 18,229.50, 25,158.56 and 11,154.56 is: 15,394.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,229.50 : 25,158.56 = 11,154.56 : x
  2. Step 2: Convert to fraction form
    18,229.50/25,158.56 = 11,154.56/x
  3. Step 3: Cross multiply
    18,229.50x = 25,158.56 × 11,154.56
  4. Step 4: Simplify right side
    18,229.50x = 280,632,485.47
  5. Step 5: Solve for x
    x = 280,632,485.47/18,229.50
  6. Step 6: Final answer
    x = 15,394.41

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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.