Home / 13,080.70-19,620.15-4,195.90

Finding the Fourth Proportional to 13,080.70, 19,620.15 and 4,195.90

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Solution

The fourth proportional to 13,080.70, 19,620.15 and 4,195.90 is: 6,293.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080.70 : 19,620.15 = 4,195.90 : x
  2. Step 2: Convert to fraction form
    13,080.70/19,620.15 = 4,195.90/x
  3. Step 3: Cross multiply
    13,080.70x = 19,620.15 × 4,195.90
  4. Step 4: Simplify right side
    13,080.70x = 82,324,187.39
  5. Step 5: Solve for x
    x = 82,324,187.39/13,080.70
  6. Step 6: Final answer
    x = 6,293.56

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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.