Home / 8,418.33-12,628.98-6,872.04

Finding the Fourth Proportional to 8,418.33, 12,628.98 and 6,872.04

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Solution

The fourth proportional to 8,418.33, 12,628.98 and 6,872.04 is: 10,309.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.33 : 12,628.98 = 6,872.04 : x
  2. Step 2: Convert to fraction form
    8,418.33/12,628.98 = 6,872.04/x
  3. Step 3: Cross multiply
    8,418.33x = 12,628.98 × 6,872.04
  4. Step 4: Simplify right side
    8,418.33x = 86,786,855.72
  5. Step 5: Solve for x
    x = 86,786,855.72/8,418.33
  6. Step 6: Final answer
    x = 10,309.27

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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.