Home / 18,601.80-27,899.61-6,121.98

Finding the Fourth Proportional to 18,601.80, 27,899.61 and 6,121.98

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Solution

The fourth proportional to 18,601.80, 27,899.61 and 6,121.98 is: 9,181.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,601.80 : 27,899.61 = 6,121.98 : x
  2. Step 2: Convert to fraction form
    18,601.80/27,899.61 = 6,121.98/x
  3. Step 3: Cross multiply
    18,601.80x = 27,899.61 × 6,121.98
  4. Step 4: Simplify right side
    18,601.80x = 170,800,854.43
  5. Step 5: Solve for x
    x = 170,800,854.43/18,601.80
  6. Step 6: Final answer
    x = 9,181.95

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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.