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Finding the Fourth Proportional to 8,131.88, 11,222.00 and 4,405.88

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Solution

The fourth proportional to 8,131.88, 11,222.00 and 4,405.88 is: 6,080.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,131.88 : 11,222.00 = 4,405.88 : x
  2. Step 2: Convert to fraction form
    8,131.88/11,222.00 = 4,405.88/x
  3. Step 3: Cross multiply
    8,131.88x = 11,222.00 × 4,405.88
  4. Step 4: Simplify right side
    8,131.88x = 49,442,707.22
  5. Step 5: Solve for x
    x = 49,442,707.22/8,131.88
  6. Step 6: Final answer
    x = 6,080.11

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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.