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Finding the Fourth Proportional to 8,808.95, 13,213.37 and 2,145.37

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Solution

The fourth proportional to 8,808.95, 13,213.37 and 2,145.37 is: 3,218.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808.95 : 13,213.37 = 2,145.37 : x
  2. Step 2: Convert to fraction form
    8,808.95/13,213.37 = 2,145.37/x
  3. Step 3: Cross multiply
    8,808.95x = 13,213.37 × 2,145.37
  4. Step 4: Simplify right side
    8,808.95x = 28,347,523.84
  5. Step 5: Solve for x
    x = 28,347,523.84/8,808.95
  6. Step 6: Final answer
    x = 3,218.04

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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.