Home / 18,108.12-27,099.54-12,523.98

Finding the Fourth Proportional to 18,108.12, 27,099.54 and 12,523.98

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Solution

The fourth proportional to 18,108.12, 27,099.54 and 12,523.98 is: 18,742.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,108.12 : 27,099.54 = 12,523.98 : x
  2. Step 2: Convert to fraction form
    18,108.12/27,099.54 = 12,523.98/x
  3. Step 3: Cross multiply
    18,108.12x = 27,099.54 × 12,523.98
  4. Step 4: Simplify right side
    18,108.12x = 339,394,096.97
  5. Step 5: Solve for x
    x = 339,394,096.97/18,108.12
  6. Step 6: Final answer
    x = 18,742.65

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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.