Home / 18,144.97-27,217.41-11,903.49

Finding the Fourth Proportional to 18,144.97, 27,217.41 and 11,903.49

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Solution

The fourth proportional to 18,144.97, 27,217.41 and 11,903.49 is: 17,855.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144.97 : 27,217.41 = 11,903.49 : x
  2. Step 2: Convert to fraction form
    18,144.97/27,217.41 = 11,903.49/x
  3. Step 3: Cross multiply
    18,144.97x = 27,217.41 × 11,903.49
  4. Step 4: Simplify right side
    18,144.97x = 323,982,167.76
  5. Step 5: Solve for x
    x = 323,982,167.76/18,144.97
  6. Step 6: Final answer
    x = 17,855.21

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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.