Home / 18,301.45-27,456.75-8,447.62

Finding the Fourth Proportional to 18,301.45, 27,456.75 and 8,447.62

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Solution

The fourth proportional to 18,301.45, 27,456.75 and 8,447.62 is: 12,673.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,301.45 : 27,456.75 = 8,447.62 : x
  2. Step 2: Convert to fraction form
    18,301.45/27,456.75 = 8,447.62/x
  3. Step 3: Cross multiply
    18,301.45x = 27,456.75 × 8,447.62
  4. Step 4: Simplify right side
    18,301.45x = 231,944,190.44
  5. Step 5: Solve for x
    x = 231,944,190.44/18,301.45
  6. Step 6: Final answer
    x = 12,673.54

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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.