Home / 18,449.20-27,687.10-7,349.47

Finding the Fourth Proportional to 18,449.20, 27,687.10 and 7,349.47

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Solution

The fourth proportional to 18,449.20, 27,687.10 and 7,349.47 is: 11,029.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,449.20 : 27,687.10 = 7,349.47 : x
  2. Step 2: Convert to fraction form
    18,449.20/27,687.10 = 7,349.47/x
  3. Step 3: Cross multiply
    18,449.20x = 27,687.10 × 7,349.47
  4. Step 4: Simplify right side
    18,449.20x = 203,485,335.65
  5. Step 5: Solve for x
    x = 203,485,335.65/18,449.20
  6. Step 6: Final answer
    x = 11,029.49

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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.