Home / 10,979.08-16,464.48-3,581.80

Finding the Fourth Proportional to 10,979.08, 16,464.48 and 3,581.80

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Solution

The fourth proportional to 10,979.08, 16,464.48 and 3,581.80 is: 5,371.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.08 : 16,464.48 = 3,581.80 : x
  2. Step 2: Convert to fraction form
    10,979.08/16,464.48 = 3,581.80/x
  3. Step 3: Cross multiply
    10,979.08x = 16,464.48 × 3,581.80
  4. Step 4: Simplify right side
    10,979.08x = 58,972,474.46
  5. Step 5: Solve for x
    x = 58,972,474.46/10,979.08
  6. Step 6: Final answer
    x = 5,371.35

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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.