Home / 18,833.18-28,266.17-7,747.85

Finding the Fourth Proportional to 18,833.18, 28,266.17 and 7,747.85

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Solution

The fourth proportional to 18,833.18, 28,266.17 and 7,747.85 is: 11,628.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,833.18 : 28,266.17 = 7,747.85 : x
  2. Step 2: Convert to fraction form
    18,833.18/28,266.17 = 7,747.85/x
  3. Step 3: Cross multiply
    18,833.18x = 28,266.17 × 7,747.85
  4. Step 4: Simplify right side
    18,833.18x = 219,002,077.16
  5. Step 5: Solve for x
    x = 219,002,077.16/18,833.18
  6. Step 6: Final answer
    x = 11,628.53

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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.