Home / 13,382.60-20,073.84-3,387.44

Finding the Fourth Proportional to 13,382.60, 20,073.84 and 3,387.44

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Solution

The fourth proportional to 13,382.60, 20,073.84 and 3,387.44 is: 5,081.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,382.60 : 20,073.84 = 3,387.44 : x
  2. Step 2: Convert to fraction form
    13,382.60/20,073.84 = 3,387.44/x
  3. Step 3: Cross multiply
    13,382.60x = 20,073.84 × 3,387.44
  4. Step 4: Simplify right side
    13,382.60x = 67,998,911.63
  5. Step 5: Solve for x
    x = 67,998,911.63/13,382.60
  6. Step 6: Final answer
    x = 5,081.14

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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.