Home / 12,191.07-18,286.62-2,957.07

Finding the Fourth Proportional to 12,191.07, 18,286.62 and 2,957.07

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Solution

The fourth proportional to 12,191.07, 18,286.62 and 2,957.07 is: 4,435.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,191.07 : 18,286.62 = 2,957.07 : x
  2. Step 2: Convert to fraction form
    12,191.07/18,286.62 = 2,957.07/x
  3. Step 3: Cross multiply
    12,191.07x = 18,286.62 × 2,957.07
  4. Step 4: Simplify right side
    12,191.07x = 54,074,815.40
  5. Step 5: Solve for x
    x = 54,074,815.40/12,191.07
  6. Step 6: Final answer
    x = 4,435.61

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Similar ratio
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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.