Home / 13,449.28-20,173.92-4,216

Finding the Fourth Proportional to 13,449.28, 20,173.92 and 4,216

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Solution

The fourth proportional to 13,449.28, 20,173.92 and 4,216 is: 6,324

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,449.28 : 20,173.92 = 4,216 : x
  2. Step 2: Convert to fraction form
    13,449.28/20,173.92 = 4,216/x
  3. Step 3: Cross multiply
    13,449.28x = 20,173.92 × 4,216
  4. Step 4: Simplify right side
    13,449.28x = 85,053,246.72
  5. Step 5: Solve for x
    x = 85,053,246.72/13,449.28
  6. Step 6: Final answer
    x = 6,324

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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.