Home / 11,831.75-17,747.51-3,511.79

Finding the Fourth Proportional to 11,831.75, 17,747.51 and 3,511.79

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Solution

The fourth proportional to 11,831.75, 17,747.51 and 3,511.79 is: 5,267.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,831.75 : 17,747.51 = 3,511.79 : x
  2. Step 2: Convert to fraction form
    11,831.75/17,747.51 = 3,511.79/x
  3. Step 3: Cross multiply
    11,831.75x = 17,747.51 × 3,511.79
  4. Step 4: Simplify right side
    11,831.75x = 62,325,421.85
  5. Step 5: Solve for x
    x = 62,325,421.85/11,831.75
  6. Step 6: Final answer
    x = 5,267.64

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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.