Home / 13,694.48-20,537.64-3,831.36

Finding the Fourth Proportional to 13,694.48, 20,537.64 and 3,831.36

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Solution

The fourth proportional to 13,694.48, 20,537.64 and 3,831.36 is: 5,745.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,694.48 : 20,537.64 = 3,831.36 : x
  2. Step 2: Convert to fraction form
    13,694.48/20,537.64 = 3,831.36/x
  3. Step 3: Cross multiply
    13,694.48x = 20,537.64 × 3,831.36
  4. Step 4: Simplify right side
    13,694.48x = 78,687,092.39
  5. Step 5: Solve for x
    x = 78,687,092.39/13,694.48
  6. Step 6: Final answer
    x = 5,745.90

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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.