Home / 18,105.26-27,157.98-5,625.02

Finding the Fourth Proportional to 18,105.26, 27,157.98 and 5,625.02

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Solution

The fourth proportional to 18,105.26, 27,157.98 and 5,625.02 is: 8,437.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,105.26 : 27,157.98 = 5,625.02 : x
  2. Step 2: Convert to fraction form
    18,105.26/27,157.98 = 5,625.02/x
  3. Step 3: Cross multiply
    18,105.26x = 27,157.98 × 5,625.02
  4. Step 4: Simplify right side
    18,105.26x = 152,764,180.66
  5. Step 5: Solve for x
    x = 152,764,180.66/18,105.26
  6. Step 6: Final answer
    x = 8,437.56

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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.