Home / 11,895.06-16,405.94-8,121.26

Finding the Fourth Proportional to 11,895.06, 16,405.94 and 8,121.26

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Solution

The fourth proportional to 11,895.06, 16,405.94 and 8,121.26 is: 11,201.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,895.06 : 16,405.94 = 8,121.26 : x
  2. Step 2: Convert to fraction form
    11,895.06/16,405.94 = 8,121.26/x
  3. Step 3: Cross multiply
    11,895.06x = 16,405.94 × 8,121.26
  4. Step 4: Simplify right side
    11,895.06x = 133,236,904.28
  5. Step 5: Solve for x
    x = 133,236,904.28/11,895.06
  6. Step 6: Final answer
    x = 11,201.03

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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.