Home / 13,766.70-20,650.91-3,906.75

Finding the Fourth Proportional to 13,766.70, 20,650.91 and 3,906.75

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Solution

The fourth proportional to 13,766.70, 20,650.91 and 3,906.75 is: 5,860.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,766.70 : 20,650.91 = 3,906.75 : x
  2. Step 2: Convert to fraction form
    13,766.70/20,650.91 = 3,906.75/x
  3. Step 3: Cross multiply
    13,766.70x = 20,650.91 × 3,906.75
  4. Step 4: Simplify right side
    13,766.70x = 80,678,022.53
  5. Step 5: Solve for x
    x = 80,678,022.53/13,766.70
  6. Step 6: Final answer
    x = 5,860.37

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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.