Home / 8,201.25-11,313.68-5,174.96

Finding the Fourth Proportional to 8,201.25, 11,313.68 and 5,174.96

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Solution

The fourth proportional to 8,201.25, 11,313.68 and 5,174.96 is: 7,138.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,201.25 : 11,313.68 = 5,174.96 : x
  2. Step 2: Convert to fraction form
    8,201.25/11,313.68 = 5,174.96/x
  3. Step 3: Cross multiply
    8,201.25x = 11,313.68 × 5,174.96
  4. Step 4: Simplify right side
    8,201.25x = 58,547,759.01
  5. Step 5: Solve for x
    x = 58,547,759.01/8,201.25
  6. Step 6: Final answer
    x = 7,138.88

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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.