Home / 8,820.48-13,231.79-3,891.36

Finding the Fourth Proportional to 8,820.48, 13,231.79 and 3,891.36

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Solution

The fourth proportional to 8,820.48, 13,231.79 and 3,891.36 is: 5,837.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,820.48 : 13,231.79 = 3,891.36 : x
  2. Step 2: Convert to fraction form
    8,820.48/13,231.79 = 3,891.36/x
  3. Step 3: Cross multiply
    8,820.48x = 13,231.79 × 3,891.36
  4. Step 4: Simplify right side
    8,820.48x = 51,489,658.33
  5. Step 5: Solve for x
    x = 51,489,658.33/8,820.48
  6. Step 6: Final answer
    x = 5,837.51

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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.