Home / 17,976.83-26,974.34-12,121.13

Finding the Fourth Proportional to 17,976.83, 26,974.34 and 12,121.13

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Solution

The fourth proportional to 17,976.83, 26,974.34 and 12,121.13 is: 18,187.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,976.83 : 26,974.34 = 12,121.13 : x
  2. Step 2: Convert to fraction form
    17,976.83/26,974.34 = 12,121.13/x
  3. Step 3: Cross multiply
    17,976.83x = 26,974.34 × 12,121.13
  4. Step 4: Simplify right side
    17,976.83x = 326,959,286.33
  5. Step 5: Solve for x
    x = 326,959,286.33/17,976.83
  6. Step 6: Final answer
    x = 18,187.82

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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.