Home / 13,311.53-19,965.75-3,450.04

Finding the Fourth Proportional to 13,311.53, 19,965.75 and 3,450.04

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Solution

The fourth proportional to 13,311.53, 19,965.75 and 3,450.04 is: 5,174.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,311.53 : 19,965.75 = 3,450.04 : x
  2. Step 2: Convert to fraction form
    13,311.53/19,965.75 = 3,450.04/x
  3. Step 3: Cross multiply
    13,311.53x = 19,965.75 × 3,450.04
  4. Step 4: Simplify right side
    13,311.53x = 68,882,586.22
  5. Step 5: Solve for x
    x = 68,882,586.22/13,311.53
  6. Step 6: Final answer
    x = 5,174.65

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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.