Home / 18,876.42-28,313.19-5,728.86

Finding the Fourth Proportional to 18,876.42, 28,313.19 and 5,728.86

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Solution

The fourth proportional to 18,876.42, 28,313.19 and 5,728.86 is: 8,592.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,876.42 : 28,313.19 = 5,728.86 : x
  2. Step 2: Convert to fraction form
    18,876.42/28,313.19 = 5,728.86/x
  3. Step 3: Cross multiply
    18,876.42x = 28,313.19 × 5,728.86
  4. Step 4: Simplify right side
    18,876.42x = 162,202,301.66
  5. Step 5: Solve for x
    x = 162,202,301.66/18,876.42
  6. Step 6: Final answer
    x = 8,592.85

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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.