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Finding the Fourth Proportional to 17,610.21, 26,401.49 and 8,728.64

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Solution

The fourth proportional to 17,610.21, 26,401.49 and 8,728.64 is: 13,086.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,610.21 : 26,401.49 = 8,728.64 : x
  2. Step 2: Convert to fraction form
    17,610.21/26,401.49 = 8,728.64/x
  3. Step 3: Cross multiply
    17,610.21x = 26,401.49 × 8,728.64
  4. Step 4: Simplify right side
    17,610.21x = 230,449,032.61
  5. Step 5: Solve for x
    x = 230,449,032.61/17,610.21
  6. Step 6: Final answer
    x = 13,086.10

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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.