Home / 18,131.11-27,205.03-8,273.41

Finding the Fourth Proportional to 18,131.11, 27,205.03 and 8,273.41

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Solution

The fourth proportional to 18,131.11, 27,205.03 and 8,273.41 is: 12,413.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,131.11 : 27,205.03 = 8,273.41 : x
  2. Step 2: Convert to fraction form
    18,131.11/27,205.03 = 8,273.41/x
  3. Step 3: Cross multiply
    18,131.11x = 27,205.03 × 8,273.41
  4. Step 4: Simplify right side
    18,131.11x = 225,078,309.58
  5. Step 5: Solve for x
    x = 225,078,309.58/18,131.11
  6. Step 6: Final answer
    x = 12,413.93

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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.