Home / 8,074.10-12,112.90-3,391.44

Finding the Fourth Proportional to 8,074.10, 12,112.90 and 3,391.44

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Solution

The fourth proportional to 8,074.10, 12,112.90 and 3,391.44 is: 5,087.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,074.10 : 12,112.90 = 3,391.44 : x
  2. Step 2: Convert to fraction form
    8,074.10/12,112.90 = 3,391.44/x
  3. Step 3: Cross multiply
    8,074.10x = 12,112.90 × 3,391.44
  4. Step 4: Simplify right side
    8,074.10x = 41,080,138.75
  5. Step 5: Solve for x
    x = 41,080,138.75/8,074.10
  6. Step 6: Final answer
    x = 5,087.89

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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.