Home / 12,380.27-17,085.66-7,076.75

Finding the Fourth Proportional to 12,380.27, 17,085.66 and 7,076.75

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Solution

The fourth proportional to 12,380.27, 17,085.66 and 7,076.75 is: 9,766.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,380.27 : 17,085.66 = 7,076.75 : x
  2. Step 2: Convert to fraction form
    12,380.27/17,085.66 = 7,076.75/x
  3. Step 3: Cross multiply
    12,380.27x = 17,085.66 × 7,076.75
  4. Step 4: Simplify right side
    12,380.27x = 120,910,944.41
  5. Step 5: Solve for x
    x = 120,910,944.41/12,380.27
  6. Step 6: Final answer
    x = 9,766.42

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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.