Home / 13,217.88-19,826.82-3,983.88

Finding the Fourth Proportional to 13,217.88, 19,826.82 and 3,983.88

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Solution

The fourth proportional to 13,217.88, 19,826.82 and 3,983.88 is: 5,975.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,217.88 : 19,826.82 = 3,983.88 : x
  2. Step 2: Convert to fraction form
    13,217.88/19,826.82 = 3,983.88/x
  3. Step 3: Cross multiply
    13,217.88x = 19,826.82 × 3,983.88
  4. Step 4: Simplify right side
    13,217.88x = 78,987,671.66
  5. Step 5: Solve for x
    x = 78,987,671.66/13,217.88
  6. Step 6: Final answer
    x = 5,975.82

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Similar ratio
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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.