Home / 13,222.85-19,835.18-3,863.09

Finding the Fourth Proportional to 13,222.85, 19,835.18 and 3,863.09

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Solution

The fourth proportional to 13,222.85, 19,835.18 and 3,863.09 is: 5,794.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,222.85 : 19,835.18 = 3,863.09 : x
  2. Step 2: Convert to fraction form
    13,222.85/19,835.18 = 3,863.09/x
  3. Step 3: Cross multiply
    13,222.85x = 19,835.18 × 3,863.09
  4. Step 4: Simplify right side
    13,222.85x = 76,625,130.27
  5. Step 5: Solve for x
    x = 76,625,130.27/13,222.85
  6. Step 6: Final answer
    x = 5,794.90

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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.