Home / 18,217.22-27,328.41-8,857.77

Finding the Fourth Proportional to 18,217.22, 27,328.41 and 8,857.77

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Solution

The fourth proportional to 18,217.22, 27,328.41 and 8,857.77 is: 13,287.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,217.22 : 27,328.41 = 8,857.77 : x
  2. Step 2: Convert to fraction form
    18,217.22/27,328.41 = 8,857.77/x
  3. Step 3: Cross multiply
    18,217.22x = 27,328.41 × 8,857.77
  4. Step 4: Simplify right side
    18,217.22x = 242,068,770.25
  5. Step 5: Solve for x
    x = 242,068,770.25/18,217.22
  6. Step 6: Final answer
    x = 13,287.91

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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.