Home / 18,726.62-28,093.97-5,580.05

Finding the Fourth Proportional to 18,726.62, 28,093.97 and 5,580.05

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Solution

The fourth proportional to 18,726.62, 28,093.97 and 5,580.05 is: 8,371.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,726.62 : 28,093.97 = 5,580.05 : x
  2. Step 2: Convert to fraction form
    18,726.62/28,093.97 = 5,580.05/x
  3. Step 3: Cross multiply
    18,726.62x = 28,093.97 × 5,580.05
  4. Step 4: Simplify right side
    18,726.62x = 156,765,630.78
  5. Step 5: Solve for x
    x = 156,765,630.78/18,726.62
  6. Step 6: Final answer
    x = 8,371.27

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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.