Home / 12,252.42-18,372.92-3,930.56

Finding the Fourth Proportional to 12,252.42, 18,372.92 and 3,930.56

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Solution

The fourth proportional to 12,252.42, 18,372.92 and 3,930.56 is: 5,894.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,252.42 : 18,372.92 = 3,930.56 : x
  2. Step 2: Convert to fraction form
    12,252.42/18,372.92 = 3,930.56/x
  3. Step 3: Cross multiply
    12,252.42x = 18,372.92 × 3,930.56
  4. Step 4: Simplify right side
    12,252.42x = 72,215,864.44
  5. Step 5: Solve for x
    x = 72,215,864.44/12,252.42
  6. Step 6: Final answer
    x = 5,894.01

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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.