Home / 8,610.35-11,879.22-5,627.90

Finding the Fourth Proportional to 8,610.35, 11,879.22 and 5,627.90

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Solution

The fourth proportional to 8,610.35, 11,879.22 and 5,627.90 is: 7,764.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,610.35 : 11,879.22 = 5,627.90 : x
  2. Step 2: Convert to fraction form
    8,610.35/11,879.22 = 5,627.90/x
  3. Step 3: Cross multiply
    8,610.35x = 11,879.22 × 5,627.90
  4. Step 4: Simplify right side
    8,610.35x = 66,855,106.01
  5. Step 5: Solve for x
    x = 66,855,106.01/8,610.35
  6. Step 6: Final answer
    x = 7,764.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.