Home / 11,219.85-16,821.67-3,424.41

Finding the Fourth Proportional to 11,219.85, 16,821.67 and 3,424.41

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Solution

The fourth proportional to 11,219.85, 16,821.67 and 3,424.41 is: 5,134.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,219.85 : 16,821.67 = 3,424.41 : x
  2. Step 2: Convert to fraction form
    11,219.85/16,821.67 = 3,424.41/x
  3. Step 3: Cross multiply
    11,219.85x = 16,821.67 × 3,424.41
  4. Step 4: Simplify right side
    11,219.85x = 57,604,202.30
  5. Step 5: Solve for x
    x = 57,604,202.30/11,219.85
  6. Step 6: Final answer
    x = 5,134.14

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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.