Home / 18,481.04-27,721.08-6,789.20

Finding the Fourth Proportional to 18,481.04, 27,721.08 and 6,789.20

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Solution

The fourth proportional to 18,481.04, 27,721.08 and 6,789.20 is: 10,183.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,481.04 : 27,721.08 = 6,789.20 : x
  2. Step 2: Convert to fraction form
    18,481.04/27,721.08 = 6,789.20/x
  3. Step 3: Cross multiply
    18,481.04x = 27,721.08 × 6,789.20
  4. Step 4: Simplify right side
    18,481.04x = 188,203,956.34
  5. Step 5: Solve for x
    x = 188,203,956.34/18,481.04
  6. Step 6: Final answer
    x = 10,183.62

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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.