Home / 11,727.62-16,183.68-6,422.48

Finding the Fourth Proportional to 11,727.62, 16,183.68 and 6,422.48

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Solution

The fourth proportional to 11,727.62, 16,183.68 and 6,422.48 is: 8,862.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,727.62 : 16,183.68 = 6,422.48 : x
  2. Step 2: Convert to fraction form
    11,727.62/16,183.68 = 6,422.48/x
  3. Step 3: Cross multiply
    11,727.62x = 16,183.68 × 6,422.48
  4. Step 4: Simplify right side
    11,727.62x = 103,939,361.13
  5. Step 5: Solve for x
    x = 103,939,361.13/11,727.62
  6. Step 6: Final answer
    x = 8,862.78

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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.