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Finding the Fourth Proportional to 8,546.14, 12,821.10 and 2,702.80

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Solution

The fourth proportional to 8,546.14, 12,821.10 and 2,702.80 is: 4,054.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,546.14 : 12,821.10 = 2,702.80 : x
  2. Step 2: Convert to fraction form
    8,546.14/12,821.10 = 2,702.80/x
  3. Step 3: Cross multiply
    8,546.14x = 12,821.10 × 2,702.80
  4. Step 4: Simplify right side
    8,546.14x = 34,652,869.08
  5. Step 5: Solve for x
    x = 34,652,869.08/8,546.14
  6. Step 6: Final answer
    x = 4,054.80

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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.