Home / 12,167.75-16,791.54-6,578.79

Finding the Fourth Proportional to 12,167.75, 16,791.54 and 6,578.79

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Solution

The fourth proportional to 12,167.75, 16,791.54 and 6,578.79 is: 9,078.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,167.75 : 16,791.54 = 6,578.79 : x
  2. Step 2: Convert to fraction form
    12,167.75/16,791.54 = 6,578.79/x
  3. Step 3: Cross multiply
    12,167.75x = 16,791.54 × 6,578.79
  4. Step 4: Simplify right side
    12,167.75x = 110,468,015.44
  5. Step 5: Solve for x
    x = 110,468,015.44/12,167.75
  6. Step 6: Final answer
    x = 9,078.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.