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Finding the Fourth Proportional to 17,861.82, 26,797.94 and 7,998.79

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Solution

The fourth proportional to 17,861.82, 26,797.94 and 7,998.79 is: 12,000.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,861.82 : 26,797.94 = 7,998.79 : x
  2. Step 2: Convert to fraction form
    17,861.82/26,797.94 = 7,998.79/x
  3. Step 3: Cross multiply
    17,861.82x = 26,797.94 × 7,998.79
  4. Step 4: Simplify right side
    17,861.82x = 214,351,094.49
  5. Step 5: Solve for x
    x = 214,351,094.49/17,861.82
  6. Step 6: Final answer
    x = 12,000.52

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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.