Home / 11,221.16-16,831.73-3,429.97

Finding the Fourth Proportional to 11,221.16, 16,831.73 and 3,429.97

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Solution

The fourth proportional to 11,221.16, 16,831.73 and 3,429.97 is: 5,144.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.16 : 16,831.73 = 3,429.97 : x
  2. Step 2: Convert to fraction form
    11,221.16/16,831.73 = 3,429.97/x
  3. Step 3: Cross multiply
    11,221.16x = 16,831.73 × 3,429.97
  4. Step 4: Simplify right side
    11,221.16x = 57,732,295.44
  5. Step 5: Solve for x
    x = 57,732,295.44/11,221.16
  6. Step 6: Final answer
    x = 5,144.95

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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.