Home / 11,518.47-17,277.74-3,198.94

Finding the Fourth Proportional to 11,518.47, 17,277.74 and 3,198.94

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Solution

The fourth proportional to 11,518.47, 17,277.74 and 3,198.94 is: 4,798.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,518.47 : 17,277.74 = 3,198.94 : x
  2. Step 2: Convert to fraction form
    11,518.47/17,277.74 = 3,198.94/x
  3. Step 3: Cross multiply
    11,518.47x = 17,277.74 × 3,198.94
  4. Step 4: Simplify right side
    11,518.47x = 55,270,453.60
  5. Step 5: Solve for x
    x = 55,270,453.60/11,518.47
  6. Step 6: Final answer
    x = 4,798.42

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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.