Home / 7,660.71-11,489.55-2,112.66

Finding the Fourth Proportional to 7,660.71, 11,489.55 and 2,112.66

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Solution

The fourth proportional to 7,660.71, 11,489.55 and 2,112.66 is: 3,168.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,660.71 : 11,489.55 = 2,112.66 : x
  2. Step 2: Convert to fraction form
    7,660.71/11,489.55 = 2,112.66/x
  3. Step 3: Cross multiply
    7,660.71x = 11,489.55 × 2,112.66
  4. Step 4: Simplify right side
    7,660.71x = 24,273,512.70
  5. Step 5: Solve for x
    x = 24,273,512.70/7,660.71
  6. Step 6: Final answer
    x = 3,168.57

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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.