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Finding the Fourth Proportional to 8,811.84, 13,212.64 and 3,338.56

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Solution

The fourth proportional to 8,811.84, 13,212.64 and 3,338.56 is: 5,005.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,811.84 : 13,212.64 = 3,338.56 : x
  2. Step 2: Convert to fraction form
    8,811.84/13,212.64 = 3,338.56/x
  3. Step 3: Cross multiply
    8,811.84x = 13,212.64 × 3,338.56
  4. Step 4: Simplify right side
    8,811.84x = 44,111,191.40
  5. Step 5: Solve for x
    x = 44,111,191.40/8,811.84
  6. Step 6: Final answer
    x = 5,005.90

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1.5x scale

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.