Home / 7,806.26-11,709.32-3,910.56

Finding the Fourth Proportional to 7,806.26, 11,709.32 and 3,910.56

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Solution

The fourth proportional to 7,806.26, 11,709.32 and 3,910.56 is: 5,865.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,806.26 : 11,709.32 = 3,910.56 : x
  2. Step 2: Convert to fraction form
    7,806.26/11,709.32 = 3,910.56/x
  3. Step 3: Cross multiply
    7,806.26x = 11,709.32 × 3,910.56
  4. Step 4: Simplify right side
    7,806.26x = 45,789,978.87
  5. Step 5: Solve for x
    x = 45,789,978.87/7,806.26
  6. Step 6: Final answer
    x = 5,865.81

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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.