Home / 8,166.36-12,249.84-2,619.88

Finding the Fourth Proportional to 8,166.36, 12,249.84 and 2,619.88

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Solution

The fourth proportional to 8,166.36, 12,249.84 and 2,619.88 is: 3,929.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,166.36 : 12,249.84 = 2,619.88 : x
  2. Step 2: Convert to fraction form
    8,166.36/12,249.84 = 2,619.88/x
  3. Step 3: Cross multiply
    8,166.36x = 12,249.84 × 2,619.88
  4. Step 4: Simplify right side
    8,166.36x = 32,093,110.82
  5. Step 5: Solve for x
    x = 32,093,110.82/8,166.36
  6. Step 6: Final answer
    x = 3,929.92

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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.