Home / 8,078.08-12,116.22-2,531.20

Finding the Fourth Proportional to 8,078.08, 12,116.22 and 2,531.20

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Solution

The fourth proportional to 8,078.08, 12,116.22 and 2,531.20 is: 3,796.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,078.08 : 12,116.22 = 2,531.20 : x
  2. Step 2: Convert to fraction form
    8,078.08/12,116.22 = 2,531.20/x
  3. Step 3: Cross multiply
    8,078.08x = 12,116.22 × 2,531.20
  4. Step 4: Simplify right side
    8,078.08x = 30,668,576.06
  5. Step 5: Solve for x
    x = 30,668,576.06/8,078.08
  6. Step 6: Final answer
    x = 3,796.52

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1.5x scale

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.