Home / 12,694.04-18,999.64-11,481.56

Finding the Fourth Proportional to 12,694.04, 18,999.64 and 11,481.56

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Solution

The fourth proportional to 12,694.04, 18,999.64 and 11,481.56 is: 17,184.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,694.04 : 18,999.64 = 11,481.56 : x
  2. Step 2: Convert to fraction form
    12,694.04/18,999.64 = 11,481.56/x
  3. Step 3: Cross multiply
    12,694.04x = 18,999.64 × 11,481.56
  4. Step 4: Simplify right side
    12,694.04x = 218,145,506.64
  5. Step 5: Solve for x
    x = 218,145,506.64/12,694.04
  6. Step 6: Final answer
    x = 17,184.88

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1.5x scale

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.