Home / 12,692.86-19,042.33-3,927.78

Finding the Fourth Proportional to 12,692.86, 19,042.33 and 3,927.78

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Solution

The fourth proportional to 12,692.86, 19,042.33 and 3,927.78 is: 5,892.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,692.86 : 19,042.33 = 3,927.78 : x
  2. Step 2: Convert to fraction form
    12,692.86/19,042.33 = 3,927.78/x
  3. Step 3: Cross multiply
    12,692.86x = 19,042.33 × 3,927.78
  4. Step 4: Simplify right side
    12,692.86x = 74,794,082.93
  5. Step 5: Solve for x
    x = 74,794,082.93/12,692.86
  6. Step 6: Final answer
    x = 5,892.61

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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.