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Finding the Fourth Proportional to 8,682.84, 13,026.06 and 3,489.12

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Solution

The fourth proportional to 8,682.84, 13,026.06 and 3,489.12 is: 5,234.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,682.84 : 13,026.06 = 3,489.12 : x
  2. Step 2: Convert to fraction form
    8,682.84/13,026.06 = 3,489.12/x
  3. Step 3: Cross multiply
    8,682.84x = 13,026.06 × 3,489.12
  4. Step 4: Simplify right side
    8,682.84x = 45,449,486.47
  5. Step 5: Solve for x
    x = 45,449,486.47/8,682.84
  6. Step 6: Final answer
    x = 5,234.40

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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.