Home / 13,378.77-20,067.35-3,517.83

Finding the Fourth Proportional to 13,378.77, 20,067.35 and 3,517.83

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Solution

The fourth proportional to 13,378.77, 20,067.35 and 3,517.83 is: 5,276.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,378.77 : 20,067.35 = 3,517.83 : x
  2. Step 2: Convert to fraction form
    13,378.77/20,067.35 = 3,517.83/x
  3. Step 3: Cross multiply
    13,378.77x = 20,067.35 × 3,517.83
  4. Step 4: Simplify right side
    13,378.77x = 70,593,508.26
  5. Step 5: Solve for x
    x = 70,593,508.26/13,378.77
  6. Step 6: Final answer
    x = 5,276.53

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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.