Home / 13,472.32-20,205.28-5,149.28

Finding the Fourth Proportional to 13,472.32, 20,205.28 and 5,149.28

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Solution

The fourth proportional to 13,472.32, 20,205.28 and 5,149.28 is: 7,722.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,472.32 : 20,205.28 = 5,149.28 : x
  2. Step 2: Convert to fraction form
    13,472.32/20,205.28 = 5,149.28/x
  3. Step 3: Cross multiply
    13,472.32x = 20,205.28 × 5,149.28
  4. Step 4: Simplify right side
    13,472.32x = 104,042,644.20
  5. Step 5: Solve for x
    x = 104,042,644.20/13,472.32
  6. Step 6: Final answer
    x = 7,722.70

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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.