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Finding the Fourth Proportional to 11,713.40, 16,163.78 and 6,676.92

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Solution

The fourth proportional to 11,713.40, 16,163.78 and 6,676.92 is: 9,213.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,713.40 : 16,163.78 = 6,676.92 : x
  2. Step 2: Convert to fraction form
    11,713.40/16,163.78 = 6,676.92/x
  3. Step 3: Cross multiply
    11,713.40x = 16,163.78 × 6,676.92
  4. Step 4: Simplify right side
    11,713.40x = 107,924,265.96
  5. Step 5: Solve for x
    x = 107,924,265.96/11,713.40
  6. Step 6: Final answer
    x = 9,213.74

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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.