Home / 7,906.20-11,840.10-5,947.80

Finding the Fourth Proportional to 7,906.20, 11,840.10 and 5,947.80

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Solution

The fourth proportional to 7,906.20, 11,840.10 and 5,947.80 is: 8,907.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,906.20 : 11,840.10 = 5,947.80 : x
  2. Step 2: Convert to fraction form
    7,906.20/11,840.10 = 5,947.80/x
  3. Step 3: Cross multiply
    7,906.20x = 11,840.10 × 5,947.80
  4. Step 4: Simplify right side
    7,906.20x = 70,422,546.78
  5. Step 5: Solve for x
    x = 70,422,546.78/7,906.20
  6. Step 6: Final answer
    x = 8,907.26

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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.