Home / 12,080.40-18,118.49-3,195.82

Finding the Fourth Proportional to 12,080.40, 18,118.49 and 3,195.82

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Solution

The fourth proportional to 12,080.40, 18,118.49 and 3,195.82 is: 4,793.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,080.40 : 18,118.49 = 3,195.82 : x
  2. Step 2: Convert to fraction form
    12,080.40/18,118.49 = 3,195.82/x
  3. Step 3: Cross multiply
    12,080.40x = 18,118.49 × 3,195.82
  4. Step 4: Simplify right side
    12,080.40x = 57,903,342.12
  5. Step 5: Solve for x
    x = 57,903,342.12/12,080.40
  6. Step 6: Final answer
    x = 4,793.16

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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.