Home / 13,129.43-19,694.12-3,895.43

Finding the Fourth Proportional to 13,129.43, 19,694.12 and 3,895.43

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Solution

The fourth proportional to 13,129.43, 19,694.12 and 3,895.43 is: 5,843.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129.43 : 19,694.12 = 3,895.43 : x
  2. Step 2: Convert to fraction form
    13,129.43/19,694.12 = 3,895.43/x
  3. Step 3: Cross multiply
    13,129.43x = 19,694.12 × 3,895.43
  4. Step 4: Simplify right side
    13,129.43x = 76,716,947.92
  5. Step 5: Solve for x
    x = 76,716,947.92/13,129.43
  6. Step 6: Final answer
    x = 5,843.13

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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.