Home / 13,249.52-19,871.96-3,889.38

Finding the Fourth Proportional to 13,249.52, 19,871.96 and 3,889.38

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Solution

The fourth proportional to 13,249.52, 19,871.96 and 3,889.38 is: 5,833.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.52 : 19,871.96 = 3,889.38 : x
  2. Step 2: Convert to fraction form
    13,249.52/19,871.96 = 3,889.38/x
  3. Step 3: Cross multiply
    13,249.52x = 19,871.96 × 3,889.38
  4. Step 4: Simplify right side
    13,249.52x = 77,289,584.34
  5. Step 5: Solve for x
    x = 77,289,584.34/13,249.52
  6. Step 6: Final answer
    x = 5,833.39

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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.