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Finding the Fourth Proportional to 8,218.84, 12,328.35 and 2,375.50

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Solution

The fourth proportional to 8,218.84, 12,328.35 and 2,375.50 is: 3,563.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.84 : 12,328.35 = 2,375.50 : x
  2. Step 2: Convert to fraction form
    8,218.84/12,328.35 = 2,375.50/x
  3. Step 3: Cross multiply
    8,218.84x = 12,328.35 × 2,375.50
  4. Step 4: Simplify right side
    8,218.84x = 29,285,995.43
  5. Step 5: Solve for x
    x = 29,285,995.43/8,218.84
  6. Step 6: Final answer
    x = 3,563.28

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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.