Home / 13,174.85-19,765.18-3,815.23

Finding the Fourth Proportional to 13,174.85, 19,765.18 and 3,815.23

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Solution

The fourth proportional to 13,174.85, 19,765.18 and 3,815.23 is: 5,723.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,174.85 : 19,765.18 = 3,815.23 : x
  2. Step 2: Convert to fraction form
    13,174.85/19,765.18 = 3,815.23/x
  3. Step 3: Cross multiply
    13,174.85x = 19,765.18 × 3,815.23
  4. Step 4: Simplify right side
    13,174.85x = 75,408,777.64
  5. Step 5: Solve for x
    x = 75,408,777.64/13,174.85
  6. Step 6: Final answer
    x = 5,723.69

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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.