Home / 7,845.87-11,759.66-2,912.36

Finding the Fourth Proportional to 7,845.87, 11,759.66 and 2,912.36

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Solution

The fourth proportional to 7,845.87, 11,759.66 and 2,912.36 is: 4,365.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845.87 : 11,759.66 = 2,912.36 : x
  2. Step 2: Convert to fraction form
    7,845.87/11,759.66 = 2,912.36/x
  3. Step 3: Cross multiply
    7,845.87x = 11,759.66 × 2,912.36
  4. Step 4: Simplify right side
    7,845.87x = 34,248,383.49
  5. Step 5: Solve for x
    x = 34,248,383.49/7,845.87
  6. Step 6: Final answer
    x = 4,365.15

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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.