Home / 11,723.82-16,178.88-6,418.66

Finding the Fourth Proportional to 11,723.82, 16,178.88 and 6,418.66

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Solution

The fourth proportional to 11,723.82, 16,178.88 and 6,418.66 is: 8,857.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,723.82 : 16,178.88 = 6,418.66 : x
  2. Step 2: Convert to fraction form
    11,723.82/16,178.88 = 6,418.66/x
  3. Step 3: Cross multiply
    11,723.82x = 16,178.88 × 6,418.66
  4. Step 4: Simplify right side
    11,723.82x = 103,846,729.90
  5. Step 5: Solve for x
    x = 103,846,729.90/11,723.82
  6. Step 6: Final answer
    x = 8,857.76

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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.