Home / 13,517.82-20,270.55-4,154.59

Finding the Fourth Proportional to 13,517.82, 20,270.55 and 4,154.59

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Solution

The fourth proportional to 13,517.82, 20,270.55 and 4,154.59 is: 6,229.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,517.82 : 20,270.55 = 4,154.59 : x
  2. Step 2: Convert to fraction form
    13,517.82/20,270.55 = 4,154.59/x
  3. Step 3: Cross multiply
    13,517.82x = 20,270.55 × 4,154.59
  4. Step 4: Simplify right side
    13,517.82x = 84,215,865.24
  5. Step 5: Solve for x
    x = 84,215,865.24/13,517.82
  6. Step 6: Final answer
    x = 6,229.99

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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.