Home / 11,518.58-17,277.88-3,198.60

Finding the Fourth Proportional to 11,518.58, 17,277.88 and 3,198.60

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Solution

The fourth proportional to 11,518.58, 17,277.88 and 3,198.60 is: 4,797.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,518.58 : 17,277.88 = 3,198.60 : x
  2. Step 2: Convert to fraction form
    11,518.58/17,277.88 = 3,198.60/x
  3. Step 3: Cross multiply
    11,518.58x = 17,277.88 × 3,198.60
  4. Step 4: Simplify right side
    11,518.58x = 55,265,010.94
  5. Step 5: Solve for x
    x = 55,265,010.94/11,518.58
  6. Step 6: Final answer
    x = 4,797.90

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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.