Home / 12,110.82-18,163.80-3,345.36

Finding the Fourth Proportional to 12,110.82, 18,163.80 and 3,345.36

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Solution

The fourth proportional to 12,110.82, 18,163.80 and 3,345.36 is: 5,017.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,110.82 : 18,163.80 = 3,345.36 : x
  2. Step 2: Convert to fraction form
    12,110.82/18,163.80 = 3,345.36/x
  3. Step 3: Cross multiply
    12,110.82x = 18,163.80 × 3,345.36
  4. Step 4: Simplify right side
    12,110.82x = 60,764,449.97
  5. Step 5: Solve for x
    x = 60,764,449.97/12,110.82
  6. Step 6: Final answer
    x = 5,017.37

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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.