Home / 11,388.12-17,087.04-4,815.78

Finding the Fourth Proportional to 11,388.12, 17,087.04 and 4,815.78

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Solution

The fourth proportional to 11,388.12, 17,087.04 and 4,815.78 is: 7,225.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,388.12 : 17,087.04 = 4,815.78 : x
  2. Step 2: Convert to fraction form
    11,388.12/17,087.04 = 4,815.78/x
  3. Step 3: Cross multiply
    11,388.12x = 17,087.04 × 4,815.78
  4. Step 4: Simplify right side
    11,388.12x = 82,287,425.49
  5. Step 5: Solve for x
    x = 82,287,425.49/11,388.12
  6. Step 6: Final answer
    x = 7,225.73

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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.