Home / 10,388.88-15,574.07-3,813.54

Finding the Fourth Proportional to 10,388.88, 15,574.07 and 3,813.54

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Solution

The fourth proportional to 10,388.88, 15,574.07 and 3,813.54 is: 5,716.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,388.88 : 15,574.07 = 3,813.54 : x
  2. Step 2: Convert to fraction form
    10,388.88/15,574.07 = 3,813.54/x
  3. Step 3: Cross multiply
    10,388.88x = 15,574.07 × 3,813.54
  4. Step 4: Simplify right side
    10,388.88x = 59,392,338.91
  5. Step 5: Solve for x
    x = 59,392,338.91/10,388.88
  6. Step 6: Final answer
    x = 5,716.91

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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.