Home / 11,912.17-16,439.78-6,608.70

Finding the Fourth Proportional to 11,912.17, 16,439.78 and 6,608.70

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Solution

The fourth proportional to 11,912.17, 16,439.78 and 6,608.70 is: 9,120.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,912.17 : 16,439.78 = 6,608.70 : x
  2. Step 2: Convert to fraction form
    11,912.17/16,439.78 = 6,608.70/x
  3. Step 3: Cross multiply
    11,912.17x = 16,439.78 × 6,608.70
  4. Step 4: Simplify right side
    11,912.17x = 108,645,574.09
  5. Step 5: Solve for x
    x = 108,645,574.09/11,912.17
  6. Step 6: Final answer
    x = 9,120.55

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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.