Home / 11,967.66-16,511.49-6,661.44

Finding the Fourth Proportional to 11,967.66, 16,511.49 and 6,661.44

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Solution

The fourth proportional to 11,967.66, 16,511.49 and 6,661.44 is: 9,190.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,967.66 : 16,511.49 = 6,661.44 : x
  2. Step 2: Convert to fraction form
    11,967.66/16,511.49 = 6,661.44/x
  3. Step 3: Cross multiply
    11,967.66x = 16,511.49 × 6,661.44
  4. Step 4: Simplify right side
    11,967.66x = 109,990,299.95
  5. Step 5: Solve for x
    x = 109,990,299.95/11,967.66
  6. Step 6: Final answer
    x = 9,190.63

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1.5x scale

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.