Home / 8,131.62-12,192.84-5,359.80

Finding the Fourth Proportional to 8,131.62, 12,192.84 and 5,359.80

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Solution

The fourth proportional to 8,131.62, 12,192.84 and 5,359.80 is: 8,036.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,131.62 : 12,192.84 = 5,359.80 : x
  2. Step 2: Convert to fraction form
    8,131.62/12,192.84 = 5,359.80/x
  3. Step 3: Cross multiply
    8,131.62x = 12,192.84 × 5,359.80
  4. Step 4: Simplify right side
    8,131.62x = 65,351,183.83
  5. Step 5: Solve for x
    x = 65,351,183.83/8,131.62
  6. Step 6: Final answer
    x = 8,036.67

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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.