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Finding the Fourth Proportional to 8,631, 11,910.96 and 5,097.96

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Solution

The fourth proportional to 8,631, 11,910.96 and 5,097.96 is: 7,035.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631 : 11,910.96 = 5,097.96 : x
  2. Step 2: Convert to fraction form
    8,631/11,910.96 = 5,097.96/x
  3. Step 3: Cross multiply
    8,631x = 11,910.96 × 5,097.96
  4. Step 4: Simplify right side
    8,631x = 60,721,597.64
  5. Step 5: Solve for x
    x = 60,721,597.64/8,631
  6. Step 6: Final answer
    x = 7,035.29

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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.