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Finding the Fourth Proportional to 8,163.84, 12,227.16 and 7,979.34

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Solution

The fourth proportional to 8,163.84, 12,227.16 and 7,979.34 is: 11,950.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,163.84 : 12,227.16 = 7,979.34 : x
  2. Step 2: Convert to fraction form
    8,163.84/12,227.16 = 7,979.34/x
  3. Step 3: Cross multiply
    8,163.84x = 12,227.16 × 7,979.34
  4. Step 4: Simplify right side
    8,163.84x = 97,564,666.87
  5. Step 5: Solve for x
    x = 97,564,666.87/8,163.84
  6. Step 6: Final answer
    x = 11,950.83

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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.