Home / 8,728.32-13,092.96-3,179.28

Finding the Fourth Proportional to 8,728.32, 13,092.96 and 3,179.28

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Solution

The fourth proportional to 8,728.32, 13,092.96 and 3,179.28 is: 4,769.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,728.32 : 13,092.96 = 3,179.28 : x
  2. Step 2: Convert to fraction form
    8,728.32/13,092.96 = 3,179.28/x
  3. Step 3: Cross multiply
    8,728.32x = 13,092.96 × 3,179.28
  4. Step 4: Simplify right side
    8,728.32x = 41,626,185.87
  5. Step 5: Solve for x
    x = 41,626,185.87/8,728.32
  6. Step 6: Final answer
    x = 4,769.09

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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.