Home / 11,231.06-15,499.44-6,515.42

Finding the Fourth Proportional to 11,231.06, 15,499.44 and 6,515.42

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Solution

The fourth proportional to 11,231.06, 15,499.44 and 6,515.42 is: 8,991.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,231.06 : 15,499.44 = 6,515.42 : x
  2. Step 2: Convert to fraction form
    11,231.06/15,499.44 = 6,515.42/x
  3. Step 3: Cross multiply
    11,231.06x = 15,499.44 × 6,515.42
  4. Step 4: Simplify right side
    11,231.06x = 100,985,361.36
  5. Step 5: Solve for x
    x = 100,985,361.36/11,231.06
  6. Step 6: Final answer
    x = 8,991.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.