Home / 10,979.28-16,469.70-3,583.20

Finding the Fourth Proportional to 10,979.28, 16,469.70 and 3,583.20

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Solution

The fourth proportional to 10,979.28, 16,469.70 and 3,583.20 is: 5,375.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.28 : 16,469.70 = 3,583.20 : x
  2. Step 2: Convert to fraction form
    10,979.28/16,469.70 = 3,583.20/x
  3. Step 3: Cross multiply
    10,979.28x = 16,469.70 × 3,583.20
  4. Step 4: Simplify right side
    10,979.28x = 59,014,229.04
  5. Step 5: Solve for x
    x = 59,014,229.04/10,979.28
  6. Step 6: Final answer
    x = 5,375.05

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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.