Home / 13,451.44-20,175.30-3,591.52

Finding the Fourth Proportional to 13,451.44, 20,175.30 and 3,591.52

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Solution

The fourth proportional to 13,451.44, 20,175.30 and 3,591.52 is: 5,386.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,451.44 : 20,175.30 = 3,591.52 : x
  2. Step 2: Convert to fraction form
    13,451.44/20,175.30 = 3,591.52/x
  3. Step 3: Cross multiply
    13,451.44x = 20,175.30 × 3,591.52
  4. Step 4: Simplify right side
    13,451.44x = 72,459,993.46
  5. Step 5: Solve for x
    x = 72,459,993.46/13,451.44
  6. Step 6: Final answer
    x = 5,386.78

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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.