Home / 13,216.72-19,828.44-3,982.48

Finding the Fourth Proportional to 13,216.72, 19,828.44 and 3,982.48

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Solution

The fourth proportional to 13,216.72, 19,828.44 and 3,982.48 is: 5,974.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.72 : 19,828.44 = 3,982.48 : x
  2. Step 2: Convert to fraction form
    13,216.72/19,828.44 = 3,982.48/x
  3. Step 3: Cross multiply
    13,216.72x = 19,828.44 × 3,982.48
  4. Step 4: Simplify right side
    13,216.72x = 78,966,365.73
  5. Step 5: Solve for x
    x = 78,966,365.73/13,216.72
  6. Step 6: Final answer
    x = 5,974.73

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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.