Home / 11,008.20-16,517.70-8,374.80

Finding the Fourth Proportional to 11,008.20, 16,517.70 and 8,374.80

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Solution

The fourth proportional to 11,008.20, 16,517.70 and 8,374.80 is: 12,566.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,008.20 : 16,517.70 = 8,374.80 : x
  2. Step 2: Convert to fraction form
    11,008.20/16,517.70 = 8,374.80/x
  3. Step 3: Cross multiply
    11,008.20x = 16,517.70 × 8,374.80
  4. Step 4: Simplify right side
    11,008.20x = 138,332,433.96
  5. Step 5: Solve for x
    x = 138,332,433.96/11,008.20
  6. Step 6: Final answer
    x = 12,566.31

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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.