Home / 18,864.66-28,299.92-5,713.90

Finding the Fourth Proportional to 18,864.66, 28,299.92 and 5,713.90

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Solution

The fourth proportional to 18,864.66, 28,299.92 and 5,713.90 is: 8,571.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,864.66 : 28,299.92 = 5,713.90 : x
  2. Step 2: Convert to fraction form
    18,864.66/28,299.92 = 5,713.90/x
  3. Step 3: Cross multiply
    18,864.66x = 28,299.92 × 5,713.90
  4. Step 4: Simplify right side
    18,864.66x = 161,702,912.89
  5. Step 5: Solve for x
    x = 161,702,912.89/18,864.66
  6. Step 6: Final answer
    x = 8,571.74

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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.