Home / 7,764.47-11,645.38-2,216.54

Finding the Fourth Proportional to 7,764.47, 11,645.38 and 2,216.54

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Solution

The fourth proportional to 7,764.47, 11,645.38 and 2,216.54 is: 3,324.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,764.47 : 11,645.38 = 2,216.54 : x
  2. Step 2: Convert to fraction form
    7,764.47/11,645.38 = 2,216.54/x
  3. Step 3: Cross multiply
    7,764.47x = 11,645.38 × 2,216.54
  4. Step 4: Simplify right side
    7,764.47x = 25,812,381.28
  5. Step 5: Solve for x
    x = 25,812,381.28/7,764.47
  6. Step 6: Final answer
    x = 3,324.42

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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.