Home / 13,314.77-19,972.91-3,453.79

Finding the Fourth Proportional to 13,314.77, 19,972.91 and 3,453.79

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Solution

The fourth proportional to 13,314.77, 19,972.91 and 3,453.79 is: 5,180.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,314.77 : 19,972.91 = 3,453.79 : x
  2. Step 2: Convert to fraction form
    13,314.77/19,972.91 = 3,453.79/x
  3. Step 3: Cross multiply
    13,314.77x = 19,972.91 × 3,453.79
  4. Step 4: Simplify right side
    13,314.77x = 68,982,119.70
  5. Step 5: Solve for x
    x = 68,982,119.70/13,314.77
  6. Step 6: Final answer
    x = 5,180.87

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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.