Home / 18,301.56-27,451.62-7,764.78

Finding the Fourth Proportional to 18,301.56, 27,451.62 and 7,764.78

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Solution

The fourth proportional to 18,301.56, 27,451.62 and 7,764.78 is: 11,646.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,301.56 : 27,451.62 = 7,764.78 : x
  2. Step 2: Convert to fraction form
    18,301.56/27,451.62 = 7,764.78/x
  3. Step 3: Cross multiply
    18,301.56x = 27,451.62 × 7,764.78
  4. Step 4: Simplify right side
    18,301.56x = 213,155,789.94
  5. Step 5: Solve for x
    x = 213,155,789.94/18,301.56
  6. Step 6: Final answer
    x = 11,646.86

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1.5x scale

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.