Home / 10,991.82-16,488.49-4,418.01

Finding the Fourth Proportional to 10,991.82, 16,488.49 and 4,418.01

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Solution

The fourth proportional to 10,991.82, 16,488.49 and 4,418.01 is: 6,627.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,991.82 : 16,488.49 = 4,418.01 : x
  2. Step 2: Convert to fraction form
    10,991.82/16,488.49 = 4,418.01/x
  3. Step 3: Cross multiply
    10,991.82x = 16,488.49 × 4,418.01
  4. Step 4: Simplify right side
    10,991.82x = 72,846,313.70
  5. Step 5: Solve for x
    x = 72,846,313.70/10,991.82
  6. Step 6: Final answer
    x = 6,627.32

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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.