Home / 12,982.44-19,478.28-4,217.37

Finding the Fourth Proportional to 12,982.44, 19,478.28 and 4,217.37

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Solution

The fourth proportional to 12,982.44, 19,478.28 and 4,217.37 is: 6,327.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982.44 : 19,478.28 = 4,217.37 : x
  2. Step 2: Convert to fraction form
    12,982.44/19,478.28 = 4,217.37/x
  3. Step 3: Cross multiply
    12,982.44x = 19,478.28 × 4,217.37
  4. Step 4: Simplify right side
    12,982.44x = 82,147,113.72
  5. Step 5: Solve for x
    x = 82,147,113.72/12,982.44
  6. Step 6: Final answer
    x = 6,327.56

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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.