Home / 8,198.85-12,287.40-3,265.79

Finding the Fourth Proportional to 8,198.85, 12,287.40 and 3,265.79

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Solution

The fourth proportional to 8,198.85, 12,287.40 and 3,265.79 is: 4,894.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,198.85 : 12,287.40 = 3,265.79 : x
  2. Step 2: Convert to fraction form
    8,198.85/12,287.40 = 3,265.79/x
  3. Step 3: Cross multiply
    8,198.85x = 12,287.40 × 3,265.79
  4. Step 4: Simplify right side
    8,198.85x = 40,127,994.36
  5. Step 5: Solve for x
    x = 40,127,994.36/8,198.85
  6. Step 6: Final answer
    x = 4,894.34

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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.