Home / 11,206-15,464.28-6,491.80

Finding the Fourth Proportional to 11,206, 15,464.28 and 6,491.80

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Solution

The fourth proportional to 11,206, 15,464.28 and 6,491.80 is: 8,958.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,206 : 15,464.28 = 6,491.80 : x
  2. Step 2: Convert to fraction form
    11,206/15,464.28 = 6,491.80/x
  3. Step 3: Cross multiply
    11,206x = 15,464.28 × 6,491.80
  4. Step 4: Simplify right side
    11,206x = 100,391,012.90
  5. Step 5: Solve for x
    x = 100,391,012.90/11,206
  6. Step 6: Final answer
    x = 8,958.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.