Home / 7,938.26-11,907.87-2,672.82

Finding the Fourth Proportional to 7,938.26, 11,907.87 and 2,672.82

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Solution

The fourth proportional to 7,938.26, 11,907.87 and 2,672.82 is: 4,009.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.26 : 11,907.87 = 2,672.82 : x
  2. Step 2: Convert to fraction form
    7,938.26/11,907.87 = 2,672.82/x
  3. Step 3: Cross multiply
    7,938.26x = 11,907.87 × 2,672.82
  4. Step 4: Simplify right side
    7,938.26x = 31,827,593.09
  5. Step 5: Solve for x
    x = 31,827,593.09/7,938.26
  6. Step 6: Final answer
    x = 4,009.39

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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.