Home / 10,821.39-16,230.46-3,424.89

Finding the Fourth Proportional to 10,821.39, 16,230.46 and 3,424.89

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Solution

The fourth proportional to 10,821.39, 16,230.46 and 3,424.89 is: 5,136.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.39 : 16,230.46 = 3,424.89 : x
  2. Step 2: Convert to fraction form
    10,821.39/16,230.46 = 3,424.89/x
  3. Step 3: Cross multiply
    10,821.39x = 16,230.46 × 3,424.89
  4. Step 4: Simplify right side
    10,821.39x = 55,587,553.22
  5. Step 5: Solve for x
    x = 55,587,553.22/10,821.39
  6. Step 6: Final answer
    x = 5,136.82

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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.