Home / 7,481.09-11,221.62-2,216.51

Finding the Fourth Proportional to 7,481.09, 11,221.62 and 2,216.51

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Solution

The fourth proportional to 7,481.09, 11,221.62 and 2,216.51 is: 3,324.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,481.09 : 11,221.62 = 2,216.51 : x
  2. Step 2: Convert to fraction form
    7,481.09/11,221.62 = 2,216.51/x
  3. Step 3: Cross multiply
    7,481.09x = 11,221.62 × 2,216.51
  4. Step 4: Simplify right side
    7,481.09x = 24,872,861.00
  5. Step 5: Solve for x
    x = 24,872,861.00/7,481.09
  6. Step 6: Final answer
    x = 3,324.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.