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Finding the Fourth Proportional to 8,811.10, 13,212.78 and 3,335.26

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Solution

The fourth proportional to 8,811.10, 13,212.78 and 3,335.26 is: 5,001.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,811.10 : 13,212.78 = 3,335.26 : x
  2. Step 2: Convert to fraction form
    8,811.10/13,212.78 = 3,335.26/x
  3. Step 3: Cross multiply
    8,811.10x = 13,212.78 × 3,335.26
  4. Step 4: Simplify right side
    8,811.10x = 44,068,056.62
  5. Step 5: Solve for x
    x = 44,068,056.62/8,811.10
  6. Step 6: Final answer
    x = 5,001.43

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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.