Home / 12,635.78-18,953.55-3,274.97

Finding the Fourth Proportional to 12,635.78, 18,953.55 and 3,274.97

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Solution

The fourth proportional to 12,635.78, 18,953.55 and 3,274.97 is: 4,912.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,635.78 : 18,953.55 = 3,274.97 : x
  2. Step 2: Convert to fraction form
    12,635.78/18,953.55 = 3,274.97/x
  3. Step 3: Cross multiply
    12,635.78x = 18,953.55 × 3,274.97
  4. Step 4: Simplify right side
    12,635.78x = 62,072,212.88
  5. Step 5: Solve for x
    x = 62,072,212.88/12,635.78
  6. Step 6: Final answer
    x = 4,912.42

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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.