Home / 13,614.85-20,414.38-6,215.35

Finding the Fourth Proportional to 13,614.85, 20,414.38 and 6,215.35

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Solution

The fourth proportional to 13,614.85, 20,414.38 and 6,215.35 is: 9,319.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,614.85 : 20,414.38 = 6,215.35 : x
  2. Step 2: Convert to fraction form
    13,614.85/20,414.38 = 6,215.35/x
  3. Step 3: Cross multiply
    13,614.85x = 20,414.38 × 6,215.35
  4. Step 4: Simplify right side
    13,614.85x = 126,882,500.09
  5. Step 5: Solve for x
    x = 126,882,500.09/13,614.85
  6. Step 6: Final answer
    x = 9,319.42

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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.