Home / 13,767.69-20,651.56-3,379.44

Finding the Fourth Proportional to 13,767.69, 20,651.56 and 3,379.44

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Solution

The fourth proportional to 13,767.69, 20,651.56 and 3,379.44 is: 5,069.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,767.69 : 20,651.56 = 3,379.44 : x
  2. Step 2: Convert to fraction form
    13,767.69/20,651.56 = 3,379.44/x
  3. Step 3: Cross multiply
    13,767.69x = 20,651.56 × 3,379.44
  4. Step 4: Simplify right side
    13,767.69x = 69,790,693.14
  5. Step 5: Solve for x
    x = 69,790,693.14/13,767.69
  6. Step 6: Final answer
    x = 5,069.17

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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.