Home / 12,694.25-19,042.29-3,928.04

Finding the Fourth Proportional to 12,694.25, 19,042.29 and 3,928.04

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Solution

The fourth proportional to 12,694.25, 19,042.29 and 3,928.04 is: 5,892.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,694.25 : 19,042.29 = 3,928.04 : x
  2. Step 2: Convert to fraction form
    12,694.25/19,042.29 = 3,928.04/x
  3. Step 3: Cross multiply
    12,694.25x = 19,042.29 × 3,928.04
  4. Step 4: Simplify right side
    12,694.25x = 74,798,876.81
  5. Step 5: Solve for x
    x = 74,798,876.81/12,694.25
  6. Step 6: Final answer
    x = 5,892.34

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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.