Home / 12,115.75-18,173.61-3,796.41

Finding the Fourth Proportional to 12,115.75, 18,173.61 and 3,796.41

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Solution

The fourth proportional to 12,115.75, 18,173.61 and 3,796.41 is: 5,694.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115.75 : 18,173.61 = 3,796.41 : x
  2. Step 2: Convert to fraction form
    12,115.75/18,173.61 = 3,796.41/x
  3. Step 3: Cross multiply
    12,115.75x = 18,173.61 × 3,796.41
  4. Step 4: Simplify right side
    12,115.75x = 68,994,392.35
  5. Step 5: Solve for x
    x = 68,994,392.35/12,115.75
  6. Step 6: Final answer
    x = 5,694.60

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1.5x scale

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.