Home / 13,119.87-19,673.99-3,757.75

Finding the Fourth Proportional to 13,119.87, 19,673.99 and 3,757.75

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Solution

The fourth proportional to 13,119.87, 19,673.99 and 3,757.75 is: 5,634.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,119.87 : 19,673.99 = 3,757.75 : x
  2. Step 2: Convert to fraction form
    13,119.87/19,673.99 = 3,757.75/x
  3. Step 3: Cross multiply
    13,119.87x = 19,673.99 × 3,757.75
  4. Step 4: Simplify right side
    13,119.87x = 73,929,935.92
  5. Step 5: Solve for x
    x = 73,929,935.92/13,119.87
  6. Step 6: Final answer
    x = 5,634.96

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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.