Home / 8,183.85-11,288.97-5,157.79

Finding the Fourth Proportional to 8,183.85, 11,288.97 and 5,157.79

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Solution

The fourth proportional to 8,183.85, 11,288.97 and 5,157.79 is: 7,114.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,183.85 : 11,288.97 = 5,157.79 : x
  2. Step 2: Convert to fraction form
    8,183.85/11,288.97 = 5,157.79/x
  3. Step 3: Cross multiply
    8,183.85x = 11,288.97 × 5,157.79
  4. Step 4: Simplify right side
    8,183.85x = 58,226,105.41
  5. Step 5: Solve for x
    x = 58,226,105.41/8,183.85
  6. Step 6: Final answer
    x = 7,114.75

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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.