Home / 8,080.14-12,116.31-2,815.03

Finding the Fourth Proportional to 8,080.14, 12,116.31 and 2,815.03

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Solution

The fourth proportional to 8,080.14, 12,116.31 and 2,815.03 is: 4,221.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,080.14 : 12,116.31 = 2,815.03 : x
  2. Step 2: Convert to fraction form
    8,080.14/12,116.31 = 2,815.03/x
  3. Step 3: Cross multiply
    8,080.14x = 12,116.31 × 2,815.03
  4. Step 4: Simplify right side
    8,080.14x = 34,107,754.57
  5. Step 5: Solve for x
    x = 34,107,754.57/8,080.14
  6. Step 6: Final answer
    x = 4,221.18

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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.