Home / 11,728.72-16,185.31-6,692.85

Finding the Fourth Proportional to 11,728.72, 16,185.31 and 6,692.85

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Solution

The fourth proportional to 11,728.72, 16,185.31 and 6,692.85 is: 9,235.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,728.72 : 16,185.31 = 6,692.85 : x
  2. Step 2: Convert to fraction form
    11,728.72/16,185.31 = 6,692.85/x
  3. Step 3: Cross multiply
    11,728.72x = 16,185.31 × 6,692.85
  4. Step 4: Simplify right side
    11,728.72x = 108,325,771.11
  5. Step 5: Solve for x
    x = 108,325,771.11/11,728.72
  6. Step 6: Final answer
    x = 9,235.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.