Home / 13,214.06-19,821.49-3,853.85

Finding the Fourth Proportional to 13,214.06, 19,821.49 and 3,853.85

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Solution

The fourth proportional to 13,214.06, 19,821.49 and 3,853.85 is: 5,780.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,214.06 : 19,821.49 = 3,853.85 : x
  2. Step 2: Convert to fraction form
    13,214.06/19,821.49 = 3,853.85/x
  3. Step 3: Cross multiply
    13,214.06x = 19,821.49 × 3,853.85
  4. Step 4: Simplify right side
    13,214.06x = 76,388,990.05
  5. Step 5: Solve for x
    x = 76,388,990.05/13,214.06
  6. Step 6: Final answer
    x = 5,780.89

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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.