Home / 13,286.87-19,922.91-6,163.32

Finding the Fourth Proportional to 13,286.87, 19,922.91 and 6,163.32

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Solution

The fourth proportional to 13,286.87, 19,922.91 and 6,163.32 is: 9,241.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286.87 : 19,922.91 = 6,163.32 : x
  2. Step 2: Convert to fraction form
    13,286.87/19,922.91 = 6,163.32/x
  3. Step 3: Cross multiply
    13,286.87x = 19,922.91 × 6,163.32
  4. Step 4: Simplify right side
    13,286.87x = 122,791,269.66
  5. Step 5: Solve for x
    x = 122,791,269.66/13,286.87
  6. Step 6: Final answer
    x = 9,241.55

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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.