Home / 8,074.80-12,111.12-2,231.82

Finding the Fourth Proportional to 8,074.80, 12,111.12 and 2,231.82

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Solution

The fourth proportional to 8,074.80, 12,111.12 and 2,231.82 is: 3,347.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,074.80 : 12,111.12 = 2,231.82 : x
  2. Step 2: Convert to fraction form
    8,074.80/12,111.12 = 2,231.82/x
  3. Step 3: Cross multiply
    8,074.80x = 12,111.12 × 2,231.82
  4. Step 4: Simplify right side
    8,074.80x = 27,029,839.84
  5. Step 5: Solve for x
    x = 27,029,839.84/8,074.80
  6. Step 6: Final answer
    x = 3,347.43

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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.