Home / 22,258.38-30,716.93-12,186.65

Finding the Fourth Proportional to 22,258.38, 30,716.93 and 12,186.65

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Solution

The fourth proportional to 22,258.38, 30,716.93 and 12,186.65 is: 16,817.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,258.38 : 30,716.93 = 12,186.65 : x
  2. Step 2: Convert to fraction form
    22,258.38/30,716.93 = 12,186.65/x
  3. Step 3: Cross multiply
    22,258.38x = 30,716.93 × 12,186.65
  4. Step 4: Simplify right side
    22,258.38x = 374,336,474.98
  5. Step 5: Solve for x
    x = 374,336,474.98/22,258.38
  6. Step 6: Final answer
    x = 16,817.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.