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Finding the Fourth Proportional to 11,997.86, 17,965.26 and 8,468.82

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Solution

The fourth proportional to 11,997.86, 17,965.26 and 8,468.82 is: 12,680.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,997.86 : 17,965.26 = 8,468.82 : x
  2. Step 2: Convert to fraction form
    11,997.86/17,965.26 = 8,468.82/x
  3. Step 3: Cross multiply
    11,997.86x = 17,965.26 × 8,468.82
  4. Step 4: Simplify right side
    11,997.86x = 152,144,553.19
  5. Step 5: Solve for x
    x = 152,144,553.19/11,997.86
  6. Step 6: Final answer
    x = 12,680.98

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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.