Home / 7,188.75-10,772.66-5,112.92

Finding the Fourth Proportional to 7,188.75, 10,772.66 and 5,112.92

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Solution

The fourth proportional to 7,188.75, 10,772.66 and 5,112.92 is: 7,661.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,188.75 : 10,772.66 = 5,112.92 : x
  2. Step 2: Convert to fraction form
    7,188.75/10,772.66 = 5,112.92/x
  3. Step 3: Cross multiply
    7,188.75x = 10,772.66 × 5,112.92
  4. Step 4: Simplify right side
    7,188.75x = 55,079,788.48
  5. Step 5: Solve for x
    x = 55,079,788.48/7,188.75
  6. Step 6: Final answer
    x = 7,661.94

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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.