Home / 13,350.60-20,025.90-8,166.60

Finding the Fourth Proportional to 13,350.60, 20,025.90 and 8,166.60

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Solution

The fourth proportional to 13,350.60, 20,025.90 and 8,166.60 is: 12,249.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,350.60 : 20,025.90 = 8,166.60 : x
  2. Step 2: Convert to fraction form
    13,350.60/20,025.90 = 8,166.60/x
  3. Step 3: Cross multiply
    13,350.60x = 20,025.90 × 8,166.60
  4. Step 4: Simplify right side
    13,350.60x = 163,543,514.94
  5. Step 5: Solve for x
    x = 163,543,514.94/13,350.60
  6. Step 6: Final answer
    x = 12,249.90

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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.