Home / 10,481.79-15,721.47-3,907.26

Finding the Fourth Proportional to 10,481.79, 15,721.47 and 3,907.26

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Solution

The fourth proportional to 10,481.79, 15,721.47 and 3,907.26 is: 5,860.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,481.79 : 15,721.47 = 3,907.26 : x
  2. Step 2: Convert to fraction form
    10,481.79/15,721.47 = 3,907.26/x
  3. Step 3: Cross multiply
    10,481.79x = 15,721.47 × 3,907.26
  4. Step 4: Simplify right side
    10,481.79x = 61,427,870.87
  5. Step 5: Solve for x
    x = 61,427,870.87/10,481.79
  6. Step 6: Final answer
    x = 5,860.44

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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.