Home / 7,816.11-10,786.25-4,279.54

Finding the Fourth Proportional to 7,816.11, 10,786.25 and 4,279.54

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Solution

The fourth proportional to 7,816.11, 10,786.25 and 4,279.54 is: 5,905.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.11 : 10,786.25 = 4,279.54 : x
  2. Step 2: Convert to fraction form
    7,816.11/10,786.25 = 4,279.54/x
  3. Step 3: Cross multiply
    7,816.11x = 10,786.25 × 4,279.54
  4. Step 4: Simplify right side
    7,816.11x = 46,160,188.33
  5. Step 5: Solve for x
    x = 46,160,188.33/7,816.11
  6. Step 6: Final answer
    x = 5,905.78

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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.