Home / 18,990.36-28,488.24-5,843.82

Finding the Fourth Proportional to 18,990.36, 28,488.24 and 5,843.82

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Solution

The fourth proportional to 18,990.36, 28,488.24 and 5,843.82 is: 8,766.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,990.36 : 28,488.24 = 5,843.82 : x
  2. Step 2: Convert to fraction form
    18,990.36/28,488.24 = 5,843.82/x
  3. Step 3: Cross multiply
    18,990.36x = 28,488.24 × 5,843.82
  4. Step 4: Simplify right side
    18,990.36x = 166,480,146.68
  5. Step 5: Solve for x
    x = 166,480,146.68/18,990.36
  6. Step 6: Final answer
    x = 8,766.56

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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.