Home / 11,321.09-16,984.03-3,424.20

Finding the Fourth Proportional to 11,321.09, 16,984.03 and 3,424.20

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Solution

The fourth proportional to 11,321.09, 16,984.03 and 3,424.20 is: 5,137.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.09 : 16,984.03 = 3,424.20 : x
  2. Step 2: Convert to fraction form
    11,321.09/16,984.03 = 3,424.20/x
  3. Step 3: Cross multiply
    11,321.09x = 16,984.03 × 3,424.20
  4. Step 4: Simplify right side
    11,321.09x = 58,156,715.53
  5. Step 5: Solve for x
    x = 58,156,715.53/11,321.09
  6. Step 6: Final answer
    x = 5,137.02

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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.