Home / 13,472.28-20,211.64-4,238.28

Finding the Fourth Proportional to 13,472.28, 20,211.64 and 4,238.28

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Solution

The fourth proportional to 13,472.28, 20,211.64 and 4,238.28 is: 6,358.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,472.28 : 20,211.64 = 4,238.28 : x
  2. Step 2: Convert to fraction form
    13,472.28/20,211.64 = 4,238.28/x
  3. Step 3: Cross multiply
    13,472.28x = 20,211.64 × 4,238.28
  4. Step 4: Simplify right side
    13,472.28x = 85,662,589.58
  5. Step 5: Solve for x
    x = 85,662,589.58/13,472.28
  6. Step 6: Final answer
    x = 6,358.43

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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.