Home / 18,371.82-27,553.41-9,135.66

Finding the Fourth Proportional to 18,371.82, 27,553.41 and 9,135.66

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Solution

The fourth proportional to 18,371.82, 27,553.41 and 9,135.66 is: 13,701.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,371.82 : 27,553.41 = 9,135.66 : x
  2. Step 2: Convert to fraction form
    18,371.82/27,553.41 = 9,135.66/x
  3. Step 3: Cross multiply
    18,371.82x = 27,553.41 × 9,135.66
  4. Step 4: Simplify right side
    18,371.82x = 251,718,585.60
  5. Step 5: Solve for x
    x = 251,718,585.60/18,371.82
  6. Step 6: Final answer
    x = 13,701.34

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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.