Home / 13,441.12-20,160.37-4,081.22

Finding the Fourth Proportional to 13,441.12, 20,160.37 and 4,081.22

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Solution

The fourth proportional to 13,441.12, 20,160.37 and 4,081.22 is: 6,121.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441.12 : 20,160.37 = 4,081.22 : x
  2. Step 2: Convert to fraction form
    13,441.12/20,160.37 = 4,081.22/x
  3. Step 3: Cross multiply
    13,441.12x = 20,160.37 × 4,081.22
  4. Step 4: Simplify right side
    13,441.12x = 82,278,899.95
  5. Step 5: Solve for x
    x = 82,278,899.95/13,441.12
  6. Step 6: Final answer
    x = 6,121.43

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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.