Home / 7,844.78-11,764.56-3,163.58

Finding the Fourth Proportional to 7,844.78, 11,764.56 and 3,163.58

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Solution

The fourth proportional to 7,844.78, 11,764.56 and 3,163.58 is: 4,744.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,844.78 : 11,764.56 = 3,163.58 : x
  2. Step 2: Convert to fraction form
    7,844.78/11,764.56 = 3,163.58/x
  3. Step 3: Cross multiply
    7,844.78x = 11,764.56 × 3,163.58
  4. Step 4: Simplify right side
    7,844.78x = 37,218,126.72
  5. Step 5: Solve for x
    x = 37,218,126.72/7,844.78
  6. Step 6: Final answer
    x = 4,744.32

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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.