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Finding the Fourth Proportional to 8,634, 11,914.92 and 4,908

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Solution

The fourth proportional to 8,634, 11,914.92 and 4,908 is: 6,773.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,634 : 11,914.92 = 4,908 : x
  2. Step 2: Convert to fraction form
    8,634/11,914.92 = 4,908/x
  3. Step 3: Cross multiply
    8,634x = 11,914.92 × 4,908
  4. Step 4: Simplify right side
    8,634x = 58,478,427.36
  5. Step 5: Solve for x
    x = 58,478,427.36/8,634
  6. Step 6: Final answer
    x = 6,773.04

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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.