Home / 7,868.20-11,801.94-3,969.64

Finding the Fourth Proportional to 7,868.20, 11,801.94 and 3,969.64

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Solution

The fourth proportional to 7,868.20, 11,801.94 and 3,969.64 is: 5,954.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.20 : 11,801.94 = 3,969.64 : x
  2. Step 2: Convert to fraction form
    7,868.20/11,801.94 = 3,969.64/x
  3. Step 3: Cross multiply
    7,868.20x = 11,801.94 × 3,969.64
  4. Step 4: Simplify right side
    7,868.20x = 46,849,453.10
  5. Step 5: Solve for x
    x = 46,849,453.10/7,868.20
  6. Step 6: Final answer
    x = 5,954.28

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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.