Home / 10,821.02-16,233.12-3,423.80

Finding the Fourth Proportional to 10,821.02, 16,233.12 and 3,423.80

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Solution

The fourth proportional to 10,821.02, 16,233.12 and 3,423.80 is: 5,136.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.02 : 16,233.12 = 3,423.80 : x
  2. Step 2: Convert to fraction form
    10,821.02/16,233.12 = 3,423.80/x
  3. Step 3: Cross multiply
    10,821.02x = 16,233.12 × 3,423.80
  4. Step 4: Simplify right side
    10,821.02x = 55,578,956.26
  5. Step 5: Solve for x
    x = 55,578,956.26/10,821.02
  6. Step 6: Final answer
    x = 5,136.20

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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.