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Finding the Fourth Proportional to 8,814, 13,227 and 3,619.80

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Solution

The fourth proportional to 8,814, 13,227 and 3,619.80 is: 5,432.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,814 : 13,227 = 3,619.80 : x
  2. Step 2: Convert to fraction form
    8,814/13,227 = 3,619.80/x
  3. Step 3: Cross multiply
    8,814x = 13,227 × 3,619.80
  4. Step 4: Simplify right side
    8,814x = 47,879,094.60
  5. Step 5: Solve for x
    x = 47,879,094.60/8,814
  6. Step 6: Final answer
    x = 5,432.16

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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.