Home / 12,480.62-18,723.42-4,694.90

Finding the Fourth Proportional to 12,480.62, 18,723.42 and 4,694.90

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Solution

The fourth proportional to 12,480.62, 18,723.42 and 4,694.90 is: 7,043.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480.62 : 18,723.42 = 4,694.90 : x
  2. Step 2: Convert to fraction form
    12,480.62/18,723.42 = 4,694.90/x
  3. Step 3: Cross multiply
    12,480.62x = 18,723.42 × 4,694.90
  4. Step 4: Simplify right side
    12,480.62x = 87,904,490.94
  5. Step 5: Solve for x
    x = 87,904,490.94/12,480.62
  6. Step 6: Final answer
    x = 7,043.28

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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.