Home / 18,007.97-27,003.32-8,512.38

Finding the Fourth Proportional to 18,007.97, 27,003.32 and 8,512.38

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Solution

The fourth proportional to 18,007.97, 27,003.32 and 8,512.38 is: 12,764.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,007.97 : 27,003.32 = 8,512.38 : x
  2. Step 2: Convert to fraction form
    18,007.97/27,003.32 = 8,512.38/x
  3. Step 3: Cross multiply
    18,007.97x = 27,003.32 × 8,512.38
  4. Step 4: Simplify right side
    18,007.97x = 229,862,478.54
  5. Step 5: Solve for x
    x = 229,862,478.54/18,007.97
  6. Step 6: Final answer
    x = 12,764.49

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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.