Home / 8,786.15-13,179.23-2,212.39

Finding the Fourth Proportional to 8,786.15, 13,179.23 and 2,212.39

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Solution

The fourth proportional to 8,786.15, 13,179.23 and 2,212.39 is: 3,318.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.15 : 13,179.23 = 2,212.39 : x
  2. Step 2: Convert to fraction form
    8,786.15/13,179.23 = 2,212.39/x
  3. Step 3: Cross multiply
    8,786.15x = 13,179.23 × 2,212.39
  4. Step 4: Simplify right side
    8,786.15x = 29,157,610.37
  5. Step 5: Solve for x
    x = 29,157,610.37/8,786.15
  6. Step 6: Final answer
    x = 3,318.59

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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.