Home / 19,169.52-28,761.42-8,636.38

Finding the Fourth Proportional to 19,169.52, 28,761.42 and 8,636.38

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Solution

The fourth proportional to 19,169.52, 28,761.42 and 8,636.38 is: 12,957.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,169.52 : 28,761.42 = 8,636.38 : x
  2. Step 2: Convert to fraction form
    19,169.52/28,761.42 = 8,636.38/x
  3. Step 3: Cross multiply
    19,169.52x = 28,761.42 × 8,636.38
  4. Step 4: Simplify right side
    19,169.52x = 248,394,530.87
  5. Step 5: Solve for x
    x = 248,394,530.87/19,169.52
  6. Step 6: Final answer
    x = 12,957.79

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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.