Home / 18,531.45-27,797.21-8,677.64

Finding the Fourth Proportional to 18,531.45, 27,797.21 and 8,677.64

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Solution

The fourth proportional to 18,531.45, 27,797.21 and 8,677.64 is: 13,016.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,531.45 : 27,797.21 = 8,677.64 : x
  2. Step 2: Convert to fraction form
    18,531.45/27,797.21 = 8,677.64/x
  3. Step 3: Cross multiply
    18,531.45x = 27,797.21 × 8,677.64
  4. Step 4: Simplify right side
    18,531.45x = 241,214,240.03
  5. Step 5: Solve for x
    x = 241,214,240.03/18,531.45
  6. Step 6: Final answer
    x = 13,016.48

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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.