Home / 12,692.19-19,040.34-3,927.11

Finding the Fourth Proportional to 12,692.19, 19,040.34 and 3,927.11

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Solution

The fourth proportional to 12,692.19, 19,040.34 and 3,927.11 is: 5,891.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,692.19 : 19,040.34 = 3,927.11 : x
  2. Step 2: Convert to fraction form
    12,692.19/19,040.34 = 3,927.11/x
  3. Step 3: Cross multiply
    12,692.19x = 19,040.34 × 3,927.11
  4. Step 4: Simplify right side
    12,692.19x = 74,773,471.65
  5. Step 5: Solve for x
    x = 74,773,471.65/12,692.19
  6. Step 6: Final answer
    x = 5,891.30

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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.