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Finding the Fourth Proportional to 8,635.84, 12,951.82 and 3,370.98

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Solution

The fourth proportional to 8,635.84, 12,951.82 and 3,370.98 is: 5,055.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,635.84 : 12,951.82 = 3,370.98 : x
  2. Step 2: Convert to fraction form
    8,635.84/12,951.82 = 3,370.98/x
  3. Step 3: Cross multiply
    8,635.84x = 12,951.82 × 3,370.98
  4. Step 4: Simplify right side
    8,635.84x = 43,660,326.18
  5. Step 5: Solve for x
    x = 43,660,326.18/8,635.84
  6. Step 6: Final answer
    x = 5,055.71

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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.