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Finding the Fourth Proportional to 17,405.80, 26,113.02 and 8,161

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Solution

The fourth proportional to 17,405.80, 26,113.02 and 8,161 is: 12,243.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,405.80 : 26,113.02 = 8,161 : x
  2. Step 2: Convert to fraction form
    17,405.80/26,113.02 = 8,161/x
  3. Step 3: Cross multiply
    17,405.80x = 26,113.02 × 8,161
  4. Step 4: Simplify right side
    17,405.80x = 213,108,356.22
  5. Step 5: Solve for x
    x = 213,108,356.22/17,405.80
  6. Step 6: Final answer
    x = 12,243.53

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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.