Home / 13,107.72-19,658.28-3,747.79

Finding the Fourth Proportional to 13,107.72, 19,658.28 and 3,747.79

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Solution

The fourth proportional to 13,107.72, 19,658.28 and 3,747.79 is: 5,620.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,107.72 : 19,658.28 = 3,747.79 : x
  2. Step 2: Convert to fraction form
    13,107.72/19,658.28 = 3,747.79/x
  3. Step 3: Cross multiply
    13,107.72x = 19,658.28 × 3,747.79
  4. Step 4: Simplify right side
    13,107.72x = 73,675,006.91
  5. Step 5: Solve for x
    x = 73,675,006.91/13,107.72
  6. Step 6: Final answer
    x = 5,620.73

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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.