Home / 8,183.24-11,279.39-5,790.15

Finding the Fourth Proportional to 8,183.24, 11,279.39 and 5,790.15

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Solution

The fourth proportional to 8,183.24, 11,279.39 and 5,790.15 is: 7,980.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,183.24 : 11,279.39 = 5,790.15 : x
  2. Step 2: Convert to fraction form
    8,183.24/11,279.39 = 5,790.15/x
  3. Step 3: Cross multiply
    8,183.24x = 11,279.39 × 5,790.15
  4. Step 4: Simplify right side
    8,183.24x = 65,309,331.06
  5. Step 5: Solve for x
    x = 65,309,331.06/8,183.24
  6. Step 6: Final answer
    x = 7,980.87

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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.