Home / 7,868.16-11,799.36-3,969.84

Finding the Fourth Proportional to 7,868.16, 11,799.36 and 3,969.84

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Solution

The fourth proportional to 7,868.16, 11,799.36 and 3,969.84 is: 5,953.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.16 : 11,799.36 = 3,969.84 : x
  2. Step 2: Convert to fraction form
    7,868.16/11,799.36 = 3,969.84/x
  3. Step 3: Cross multiply
    7,868.16x = 11,799.36 × 3,969.84
  4. Step 4: Simplify right side
    7,868.16x = 46,841,571.30
  5. Step 5: Solve for x
    x = 46,841,571.30/7,868.16
  6. Step 6: Final answer
    x = 5,953.31

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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.