Home / 11,388.37-17,078.45-4,815.07

Finding the Fourth Proportional to 11,388.37, 17,078.45 and 4,815.07

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Solution

The fourth proportional to 11,388.37, 17,078.45 and 4,815.07 is: 7,220.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,388.37 : 17,078.45 = 4,815.07 : x
  2. Step 2: Convert to fraction form
    11,388.37/17,078.45 = 4,815.07/x
  3. Step 3: Cross multiply
    11,388.37x = 17,078.45 × 4,815.07
  4. Step 4: Simplify right side
    11,388.37x = 82,233,932.24
  5. Step 5: Solve for x
    x = 82,233,932.24/11,388.37
  6. Step 6: Final answer
    x = 7,220.87

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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.