Home / 13,143.42-19,704.03-6,119.85

Finding the Fourth Proportional to 13,143.42, 19,704.03 and 6,119.85

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Solution

The fourth proportional to 13,143.42, 19,704.03 and 6,119.85 is: 9,174.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,143.42 : 19,704.03 = 6,119.85 : x
  2. Step 2: Convert to fraction form
    13,143.42/19,704.03 = 6,119.85/x
  3. Step 3: Cross multiply
    13,143.42x = 19,704.03 × 6,119.85
  4. Step 4: Simplify right side
    13,143.42x = 120,585,708.00
  5. Step 5: Solve for x
    x = 120,585,708.00/13,143.42
  6. Step 6: Final answer
    x = 9,174.61

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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.