Home / 18,172.44-27,247.05-8,680.86

Finding the Fourth Proportional to 18,172.44, 27,247.05 and 8,680.86

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Solution

The fourth proportional to 18,172.44, 27,247.05 and 8,680.86 is: 13,015.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172.44 : 27,247.05 = 8,680.86 : x
  2. Step 2: Convert to fraction form
    18,172.44/27,247.05 = 8,680.86/x
  3. Step 3: Cross multiply
    18,172.44x = 27,247.05 × 8,680.86
  4. Step 4: Simplify right side
    18,172.44x = 236,527,826.46
  5. Step 5: Solve for x
    x = 236,527,826.46/18,172.44
  6. Step 6: Final answer
    x = 13,015.74

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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.