Home / 18,117.40-27,176.20-8,249.80

Finding the Fourth Proportional to 18,117.40, 27,176.20 and 8,249.80

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Solution

The fourth proportional to 18,117.40, 27,176.20 and 8,249.80 is: 12,374.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.40 : 27,176.20 = 8,249.80 : x
  2. Step 2: Convert to fraction form
    18,117.40/27,176.20 = 8,249.80/x
  3. Step 3: Cross multiply
    18,117.40x = 27,176.20 × 8,249.80
  4. Step 4: Simplify right side
    18,117.40x = 224,198,214.76
  5. Step 5: Solve for x
    x = 224,198,214.76/18,117.40
  6. Step 6: Final answer
    x = 12,374.75

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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.