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Finding the Fourth Proportional to 8,063.88, 12,105.05 and 4,945.35

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Solution

The fourth proportional to 8,063.88, 12,105.05 and 4,945.35 is: 7,423.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,063.88 : 12,105.05 = 4,945.35 : x
  2. Step 2: Convert to fraction form
    8,063.88/12,105.05 = 4,945.35/x
  3. Step 3: Cross multiply
    8,063.88x = 12,105.05 × 4,945.35
  4. Step 4: Simplify right side
    8,063.88x = 59,863,729.68
  5. Step 5: Solve for x
    x = 59,863,729.68/8,063.88
  6. Step 6: Final answer
    x = 7,423.69

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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.