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Finding the Fourth Proportional to 11,992.44, 17,990.74 and 3,672.26

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Solution

The fourth proportional to 11,992.44, 17,990.74 and 3,672.26 is: 5,509.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,992.44 : 17,990.74 = 3,672.26 : x
  2. Step 2: Convert to fraction form
    11,992.44/17,990.74 = 3,672.26/x
  3. Step 3: Cross multiply
    11,992.44x = 17,990.74 × 3,672.26
  4. Step 4: Simplify right side
    11,992.44x = 66,066,674.87
  5. Step 5: Solve for x
    x = 66,066,674.87/11,992.44
  6. Step 6: Final answer
    x = 5,509.03

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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.