Home / 11,723.50-16,178.97-6,418.54

Finding the Fourth Proportional to 11,723.50, 16,178.97 and 6,418.54

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Solution

The fourth proportional to 11,723.50, 16,178.97 and 6,418.54 is: 8,857.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,723.50 : 16,178.97 = 6,418.54 : x
  2. Step 2: Convert to fraction form
    11,723.50/16,178.97 = 6,418.54/x
  3. Step 3: Cross multiply
    11,723.50x = 16,178.97 × 6,418.54
  4. Step 4: Simplify right side
    11,723.50x = 103,845,366.10
  5. Step 5: Solve for x
    x = 103,845,366.10/11,723.50
  6. Step 6: Final answer
    x = 8,857.88

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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.