Home / 8,811.82-13,218.98-2,887.43

Finding the Fourth Proportional to 8,811.82, 13,218.98 and 2,887.43

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Solution

The fourth proportional to 8,811.82, 13,218.98 and 2,887.43 is: 4,331.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,811.82 : 13,218.98 = 2,887.43 : x
  2. Step 2: Convert to fraction form
    8,811.82/13,218.98 = 2,887.43/x
  3. Step 3: Cross multiply
    8,811.82x = 13,218.98 × 2,887.43
  4. Step 4: Simplify right side
    8,811.82x = 38,168,945.26
  5. Step 5: Solve for x
    x = 38,168,945.26/8,811.82
  6. Step 6: Final answer
    x = 4,331.56

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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.