Home / 12,149.75-16,766.26-6,771.95

Finding the Fourth Proportional to 12,149.75, 16,766.26 and 6,771.95

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Solution

The fourth proportional to 12,149.75, 16,766.26 and 6,771.95 is: 9,345.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,149.75 : 16,766.26 = 6,771.95 : x
  2. Step 2: Convert to fraction form
    12,149.75/16,766.26 = 6,771.95/x
  3. Step 3: Cross multiply
    12,149.75x = 16,766.26 × 6,771.95
  4. Step 4: Simplify right side
    12,149.75x = 113,540,345.11
  5. Step 5: Solve for x
    x = 113,540,345.11/12,149.75
  6. Step 6: Final answer
    x = 9,345.07

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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.