Home / 8,786.46-12,121.83-6,267.90

Finding the Fourth Proportional to 8,786.46, 12,121.83 and 6,267.90

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Solution

The fourth proportional to 8,786.46, 12,121.83 and 6,267.90 is: 8,647.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.46 : 12,121.83 = 6,267.90 : x
  2. Step 2: Convert to fraction form
    8,786.46/12,121.83 = 6,267.90/x
  3. Step 3: Cross multiply
    8,786.46x = 12,121.83 × 6,267.90
  4. Step 4: Simplify right side
    8,786.46x = 75,978,418.26
  5. Step 5: Solve for x
    x = 75,978,418.26/8,786.46
  6. Step 6: Final answer
    x = 8,647.22

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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.