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Finding the Fourth Proportional to 8,694.92, 11,999.46 and 4,918.28

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Solution

The fourth proportional to 8,694.92, 11,999.46 and 4,918.28 is: 6,787.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,694.92 : 11,999.46 = 4,918.28 : x
  2. Step 2: Convert to fraction form
    8,694.92/11,999.46 = 4,918.28/x
  3. Step 3: Cross multiply
    8,694.92x = 11,999.46 × 4,918.28
  4. Step 4: Simplify right side
    8,694.92x = 59,016,704.13
  5. Step 5: Solve for x
    x = 59,016,704.13/8,694.92
  6. Step 6: Final answer
    x = 6,787.49

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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.