Home / 10,821.21-16,233.44-3,423.21

Finding the Fourth Proportional to 10,821.21, 16,233.44 and 3,423.21

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Solution

The fourth proportional to 10,821.21, 16,233.44 and 3,423.21 is: 5,135.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.21 : 16,233.44 = 3,423.21 : x
  2. Step 2: Convert to fraction form
    10,821.21/16,233.44 = 3,423.21/x
  3. Step 3: Cross multiply
    10,821.21x = 16,233.44 × 3,423.21
  4. Step 4: Simplify right side
    10,821.21x = 55,570,457.03
  5. Step 5: Solve for x
    x = 55,570,457.03/10,821.21
  6. Step 6: Final answer
    x = 5,135.33

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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.