Home / 11,976.03-17,966.83-4,078.61

Finding the Fourth Proportional to 11,976.03, 17,966.83 and 4,078.61

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Solution

The fourth proportional to 11,976.03, 17,966.83 and 4,078.61 is: 6,118.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,976.03 : 17,966.83 = 4,078.61 : x
  2. Step 2: Convert to fraction form
    11,976.03/17,966.83 = 4,078.61/x
  3. Step 3: Cross multiply
    11,976.03x = 17,966.83 × 4,078.61
  4. Step 4: Simplify right side
    11,976.03x = 73,279,766.65
  5. Step 5: Solve for x
    x = 73,279,766.65/11,976.03
  6. Step 6: Final answer
    x = 6,118.87

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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.