Home / 11,132.60-16,701.75-8,205.90

Finding the Fourth Proportional to 11,132.60, 16,701.75 and 8,205.90

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Solution

The fourth proportional to 11,132.60, 16,701.75 and 8,205.90 is: 12,310.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,132.60 : 16,701.75 = 8,205.90 : x
  2. Step 2: Convert to fraction form
    11,132.60/16,701.75 = 8,205.90/x
  3. Step 3: Cross multiply
    11,132.60x = 16,701.75 × 8,205.90
  4. Step 4: Simplify right side
    11,132.60x = 137,052,890.33
  5. Step 5: Solve for x
    x = 137,052,890.33/11,132.60
  6. Step 6: Final answer
    x = 12,310.95

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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.