Home / 13,129.38-19,694.07-3,895.38

Finding the Fourth Proportional to 13,129.38, 19,694.07 and 3,895.38

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Solution

The fourth proportional to 13,129.38, 19,694.07 and 3,895.38 is: 5,843.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129.38 : 19,694.07 = 3,895.38 : x
  2. Step 2: Convert to fraction form
    13,129.38/19,694.07 = 3,895.38/x
  3. Step 3: Cross multiply
    13,129.38x = 19,694.07 × 3,895.38
  4. Step 4: Simplify right side
    13,129.38x = 76,715,886.40
  5. Step 5: Solve for x
    x = 76,715,886.40/13,129.38
  6. Step 6: Final answer
    x = 5,843.07

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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.