Home / 10,821.06-16,230.68-3,424.44

Finding the Fourth Proportional to 10,821.06, 16,230.68 and 3,424.44

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Solution

The fourth proportional to 10,821.06, 16,230.68 and 3,424.44 is: 5,136.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.06 : 16,230.68 = 3,424.44 : x
  2. Step 2: Convert to fraction form
    10,821.06/16,230.68 = 3,424.44/x
  3. Step 3: Cross multiply
    10,821.06x = 16,230.68 × 3,424.44
  4. Step 4: Simplify right side
    10,821.06x = 55,581,046.40
  5. Step 5: Solve for x
    x = 55,581,046.40/10,821.06
  6. Step 6: Final answer
    x = 5,136.38

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1.5x scale

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.