Home / 11,622.78-17,434.89-3,831.66

Finding the Fourth Proportional to 11,622.78, 17,434.89 and 3,831.66

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Solution

The fourth proportional to 11,622.78, 17,434.89 and 3,831.66 is: 5,747.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,622.78 : 17,434.89 = 3,831.66 : x
  2. Step 2: Convert to fraction form
    11,622.78/17,434.89 = 3,831.66/x
  3. Step 3: Cross multiply
    11,622.78x = 17,434.89 × 3,831.66
  4. Step 4: Simplify right side
    11,622.78x = 66,804,570.62
  5. Step 5: Solve for x
    x = 66,804,570.62/11,622.78
  6. Step 6: Final answer
    x = 5,747.73

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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.