Home / 12,251.88-18,374.04-3,931.56

Finding the Fourth Proportional to 12,251.88, 18,374.04 and 3,931.56

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Solution

The fourth proportional to 12,251.88, 18,374.04 and 3,931.56 is: 5,896.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251.88 : 18,374.04 = 3,931.56 : x
  2. Step 2: Convert to fraction form
    12,251.88/18,374.04 = 3,931.56/x
  3. Step 3: Cross multiply
    12,251.88x = 18,374.04 × 3,931.56
  4. Step 4: Simplify right side
    12,251.88x = 72,238,640.70
  5. Step 5: Solve for x
    x = 72,238,640.70/12,251.88
  6. Step 6: Final answer
    x = 5,896.13

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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.