Home / 7,868.56-11,794.57-3,964.78

Finding the Fourth Proportional to 7,868.56, 11,794.57 and 3,964.78

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Solution

The fourth proportional to 7,868.56, 11,794.57 and 3,964.78 is: 5,943.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.56 : 11,794.57 = 3,964.78 : x
  2. Step 2: Convert to fraction form
    7,868.56/11,794.57 = 3,964.78/x
  3. Step 3: Cross multiply
    7,868.56x = 11,794.57 × 3,964.78
  4. Step 4: Simplify right side
    7,868.56x = 46,762,796.45
  5. Step 5: Solve for x
    x = 46,762,796.45/7,868.56
  6. Step 6: Final answer
    x = 5,943.00

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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.