Home / 18,114.30-27,171.45-8,272.80

Finding the Fourth Proportional to 18,114.30, 27,171.45 and 8,272.80

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Solution

The fourth proportional to 18,114.30, 27,171.45 and 8,272.80 is: 12,409.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,114.30 : 27,171.45 = 8,272.80 : x
  2. Step 2: Convert to fraction form
    18,114.30/27,171.45 = 8,272.80/x
  3. Step 3: Cross multiply
    18,114.30x = 27,171.45 × 8,272.80
  4. Step 4: Simplify right side
    18,114.30x = 224,783,971.56
  5. Step 5: Solve for x
    x = 224,783,971.56/18,114.30
  6. Step 6: Final answer
    x = 12,409.20

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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.