Home / 11,272.20-16,910.10-3,877.50

Finding the Fourth Proportional to 11,272.20, 16,910.10 and 3,877.50

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Solution

The fourth proportional to 11,272.20, 16,910.10 and 3,877.50 is: 5,816.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,272.20 : 16,910.10 = 3,877.50 : x
  2. Step 2: Convert to fraction form
    11,272.20/16,910.10 = 3,877.50/x
  3. Step 3: Cross multiply
    11,272.20x = 16,910.10 × 3,877.50
  4. Step 4: Simplify right side
    11,272.20x = 65,568,912.75
  5. Step 5: Solve for x
    x = 65,568,912.75/11,272.20
  6. Step 6: Final answer
    x = 5,816.87

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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.