Home / 18,726.49-28,093.79-5,579.92

Finding the Fourth Proportional to 18,726.49, 28,093.79 and 5,579.92

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Solution

The fourth proportional to 18,726.49, 28,093.79 and 5,579.92 is: 8,371.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,726.49 : 28,093.79 = 5,579.92 : x
  2. Step 2: Convert to fraction form
    18,726.49/28,093.79 = 5,579.92/x
  3. Step 3: Cross multiply
    18,726.49x = 28,093.79 × 5,579.92
  4. Step 4: Simplify right side
    18,726.49x = 156,761,100.70
  5. Step 5: Solve for x
    x = 156,761,100.70/18,726.49
  6. Step 6: Final answer
    x = 8,371.09

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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.