Home / 12,151.07-18,226.61-9,381.79

Finding the Fourth Proportional to 12,151.07, 18,226.61 and 9,381.79

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Solution

The fourth proportional to 12,151.07, 18,226.61 and 9,381.79 is: 14,072.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,151.07 : 18,226.61 = 9,381.79 : x
  2. Step 2: Convert to fraction form
    12,151.07/18,226.61 = 9,381.79/x
  3. Step 3: Cross multiply
    12,151.07x = 18,226.61 × 9,381.79
  4. Step 4: Simplify right side
    12,151.07x = 170,998,227.43
  5. Step 5: Solve for x
    x = 170,998,227.43/12,151.07
  6. Step 6: Final answer
    x = 14,072.69

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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.