Home / 12,072.75-16,659.03-6,766.80

Finding the Fourth Proportional to 12,072.75, 16,659.03 and 6,766.80

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Solution

The fourth proportional to 12,072.75, 16,659.03 and 6,766.80 is: 9,337.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,072.75 : 16,659.03 = 6,766.80 : x
  2. Step 2: Convert to fraction form
    12,072.75/16,659.03 = 6,766.80/x
  3. Step 3: Cross multiply
    12,072.75x = 16,659.03 × 6,766.80
  4. Step 4: Simplify right side
    12,072.75x = 112,728,324.20
  5. Step 5: Solve for x
    x = 112,728,324.20/12,072.75
  6. Step 6: Final answer
    x = 9,337.42

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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.