Home / 10,388.31-15,573.60-3,813.36

Finding the Fourth Proportional to 10,388.31, 15,573.60 and 3,813.36

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Solution

The fourth proportional to 10,388.31, 15,573.60 and 3,813.36 is: 5,716.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,388.31 : 15,573.60 = 3,813.36 : x
  2. Step 2: Convert to fraction form
    10,388.31/15,573.60 = 3,813.36/x
  3. Step 3: Cross multiply
    10,388.31x = 15,573.60 × 3,813.36
  4. Step 4: Simplify right side
    10,388.31x = 59,387,743.30
  5. Step 5: Solve for x
    x = 59,387,743.30/10,388.31
  6. Step 6: Final answer
    x = 5,716.79

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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.