Home / 8,811.75-13,219.34-2,571.80

Finding the Fourth Proportional to 8,811.75, 13,219.34 and 2,571.80

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Solution

The fourth proportional to 8,811.75, 13,219.34 and 2,571.80 is: 3,858.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,811.75 : 13,219.34 = 2,571.80 : x
  2. Step 2: Convert to fraction form
    8,811.75/13,219.34 = 2,571.80/x
  3. Step 3: Cross multiply
    8,811.75x = 13,219.34 × 2,571.80
  4. Step 4: Simplify right side
    8,811.75x = 33,997,419.66
  5. Step 5: Solve for x
    x = 33,997,419.66/8,811.75
  6. Step 6: Final answer
    x = 3,858.19

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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.