Home / 18,131.40-27,171.78-9,793.44

Finding the Fourth Proportional to 18,131.40, 27,171.78 and 9,793.44

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Solution

The fourth proportional to 18,131.40, 27,171.78 and 9,793.44 is: 14,676.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,131.40 : 27,171.78 = 9,793.44 : x
  2. Step 2: Convert to fraction form
    18,131.40/27,171.78 = 9,793.44/x
  3. Step 3: Cross multiply
    18,131.40x = 27,171.78 × 9,793.44
  4. Step 4: Simplify right side
    18,131.40x = 266,105,197.12
  5. Step 5: Solve for x
    x = 266,105,197.12/18,131.40
  6. Step 6: Final answer
    x = 14,676.48

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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.