Home / 8,081.96-11,151.78-5,433.80

Finding the Fourth Proportional to 8,081.96, 11,151.78 and 5,433.80

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Solution

The fourth proportional to 8,081.96, 11,151.78 and 5,433.80 is: 7,497.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.96 : 11,151.78 = 5,433.80 : x
  2. Step 2: Convert to fraction form
    8,081.96/11,151.78 = 5,433.80/x
  3. Step 3: Cross multiply
    8,081.96x = 11,151.78 × 5,433.80
  4. Step 4: Simplify right side
    8,081.96x = 60,596,542.16
  5. Step 5: Solve for x
    x = 60,596,542.16/8,081.96
  6. Step 6: Final answer
    x = 7,497.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.