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Finding the Fourth Proportional to 11,163.56, 16,723.02 and 6,718.78

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Solution

The fourth proportional to 11,163.56, 16,723.02 and 6,718.78 is: 10,064.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,163.56 : 16,723.02 = 6,718.78 : x
  2. Step 2: Convert to fraction form
    11,163.56/16,723.02 = 6,718.78/x
  3. Step 3: Cross multiply
    11,163.56x = 16,723.02 × 6,718.78
  4. Step 4: Simplify right side
    11,163.56x = 112,358,292.32
  5. Step 5: Solve for x
    x = 112,358,292.32/11,163.56
  6. Step 6: Final answer
    x = 10,064.74

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1.5x scale

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.