Home / 8,131.95-12,183.35-7,694.55

Finding the Fourth Proportional to 8,131.95, 12,183.35 and 7,694.55

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Solution

The fourth proportional to 8,131.95, 12,183.35 and 7,694.55 is: 11,528.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,131.95 : 12,183.35 = 7,694.55 : x
  2. Step 2: Convert to fraction form
    8,131.95/12,183.35 = 7,694.55/x
  3. Step 3: Cross multiply
    8,131.95x = 12,183.35 × 7,694.55
  4. Step 4: Simplify right side
    8,131.95x = 93,745,357.27
  5. Step 5: Solve for x
    x = 93,745,357.27/8,131.95
  6. Step 6: Final answer
    x = 11,528.03

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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.