Home / 7,868.68-11,810.32-3,975.82

Finding the Fourth Proportional to 7,868.68, 11,810.32 and 3,975.82

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Solution

The fourth proportional to 7,868.68, 11,810.32 and 3,975.82 is: 5,967.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.68 : 11,810.32 = 3,975.82 : x
  2. Step 2: Convert to fraction form
    7,868.68/11,810.32 = 3,975.82/x
  3. Step 3: Cross multiply
    7,868.68x = 11,810.32 × 3,975.82
  4. Step 4: Simplify right side
    7,868.68x = 46,955,716.11
  5. Step 5: Solve for x
    x = 46,955,716.11/7,868.68
  6. Step 6: Final answer
    x = 5,967.42

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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.