Home / 18,700.20-28,028.97-11,683.44

Finding the Fourth Proportional to 18,700.20, 28,028.97 and 11,683.44

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Solution

The fourth proportional to 18,700.20, 28,028.97 and 11,683.44 is: 17,511.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,700.20 : 28,028.97 = 11,683.44 : x
  2. Step 2: Convert to fraction form
    18,700.20/28,028.97 = 11,683.44/x
  3. Step 3: Cross multiply
    18,700.20x = 28,028.97 × 11,683.44
  4. Step 4: Simplify right side
    18,700.20x = 327,474,789.26
  5. Step 5: Solve for x
    x = 327,474,789.26/18,700.20
  6. Step 6: Final answer
    x = 17,511.83

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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.