Home / 8,080.80-12,112.21-3,399.41

Finding the Fourth Proportional to 8,080.80, 12,112.21 and 3,399.41

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Solution

The fourth proportional to 8,080.80, 12,112.21 and 3,399.41 is: 5,095.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,080.80 : 12,112.21 = 3,399.41 : x
  2. Step 2: Convert to fraction form
    8,080.80/12,112.21 = 3,399.41/x
  3. Step 3: Cross multiply
    8,080.80x = 12,112.21 × 3,399.41
  4. Step 4: Simplify right side
    8,080.80x = 41,174,367.80
  5. Step 5: Solve for x
    x = 41,174,367.80/8,080.80
  6. Step 6: Final answer
    x = 5,095.33

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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.