Home / 8,080.36-12,118.11-5,306.92

Finding the Fourth Proportional to 8,080.36, 12,118.11 and 5,306.92

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Solution

The fourth proportional to 8,080.36, 12,118.11 and 5,306.92 is: 7,958.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,080.36 : 12,118.11 = 5,306.92 : x
  2. Step 2: Convert to fraction form
    8,080.36/12,118.11 = 5,306.92/x
  3. Step 3: Cross multiply
    8,080.36x = 12,118.11 × 5,306.92
  4. Step 4: Simplify right side
    8,080.36x = 64,309,840.32
  5. Step 5: Solve for x
    x = 64,309,840.32/8,080.36
  6. Step 6: Final answer
    x = 7,958.78

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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.