Home / 18,123.15-27,180.51-4,976.58

Finding the Fourth Proportional to 18,123.15, 27,180.51 and 4,976.58

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Solution

The fourth proportional to 18,123.15, 27,180.51 and 4,976.58 is: 7,463.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,123.15 : 27,180.51 = 4,976.58 : x
  2. Step 2: Convert to fraction form
    18,123.15/27,180.51 = 4,976.58/x
  3. Step 3: Cross multiply
    18,123.15x = 27,180.51 × 4,976.58
  4. Step 4: Simplify right side
    18,123.15x = 135,265,982.46
  5. Step 5: Solve for x
    x = 135,265,982.46/18,123.15
  6. Step 6: Final answer
    x = 7,463.71

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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.