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Finding the Fourth Proportional to 17,851.86, 26,777.99 and 8,492.78

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Solution

The fourth proportional to 17,851.86, 26,777.99 and 8,492.78 is: 12,739.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,851.86 : 26,777.99 = 8,492.78 : x
  2. Step 2: Convert to fraction form
    17,851.86/26,777.99 = 8,492.78/x
  3. Step 3: Cross multiply
    17,851.86x = 26,777.99 × 8,492.78
  4. Step 4: Simplify right side
    17,851.86x = 227,419,666.09
  5. Step 5: Solve for x
    x = 227,419,666.09/17,851.86
  6. Step 6: Final answer
    x = 12,739.27

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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.