Home / 12,650.82-18,976.61-3,290.64

Finding the Fourth Proportional to 12,650.82, 18,976.61 and 3,290.64

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Solution

The fourth proportional to 12,650.82, 18,976.61 and 3,290.64 is: 4,936.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,650.82 : 18,976.61 = 3,290.64 : x
  2. Step 2: Convert to fraction form
    12,650.82/18,976.61 = 3,290.64/x
  3. Step 3: Cross multiply
    12,650.82x = 18,976.61 × 3,290.64
  4. Step 4: Simplify right side
    12,650.82x = 62,445,191.93
  5. Step 5: Solve for x
    x = 62,445,191.93/12,650.82
  6. Step 6: Final answer
    x = 4,936.06

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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.