Home / 12,272.94-18,412.13-4,481.75

Finding the Fourth Proportional to 12,272.94, 18,412.13 and 4,481.75

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Solution

The fourth proportional to 12,272.94, 18,412.13 and 4,481.75 is: 6,723.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,272.94 : 18,412.13 = 4,481.75 : x
  2. Step 2: Convert to fraction form
    12,272.94/18,412.13 = 4,481.75/x
  3. Step 3: Cross multiply
    12,272.94x = 18,412.13 × 4,481.75
  4. Step 4: Simplify right side
    12,272.94x = 82,518,563.63
  5. Step 5: Solve for x
    x = 82,518,563.63/12,272.94
  6. Step 6: Final answer
    x = 6,723.62

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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.