Home / 18,791.54-28,186.33-6,311.82

Finding the Fourth Proportional to 18,791.54, 28,186.33 and 6,311.82

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Solution

The fourth proportional to 18,791.54, 28,186.33 and 6,311.82 is: 9,467.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,791.54 : 28,186.33 = 6,311.82 : x
  2. Step 2: Convert to fraction form
    18,791.54/28,186.33 = 6,311.82/x
  3. Step 3: Cross multiply
    18,791.54x = 28,186.33 × 6,311.82
  4. Step 4: Simplify right side
    18,791.54x = 177,907,025.64
  5. Step 5: Solve for x
    x = 177,907,025.64/18,791.54
  6. Step 6: Final answer
    x = 9,467.40

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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.