Home / 18,179.78-27,253.27-12,635.74

Finding the Fourth Proportional to 18,179.78, 27,253.27 and 12,635.74

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Solution

The fourth proportional to 18,179.78, 27,253.27 and 12,635.74 is: 18,942.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,179.78 : 27,253.27 = 12,635.74 : x
  2. Step 2: Convert to fraction form
    18,179.78/27,253.27 = 12,635.74/x
  3. Step 3: Cross multiply
    18,179.78x = 27,253.27 × 12,635.74
  4. Step 4: Simplify right side
    18,179.78x = 344,365,134.15
  5. Step 5: Solve for x
    x = 344,365,134.15/18,179.78
  6. Step 6: Final answer
    x = 18,942.20

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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.