Home / 11,289.78-16,938.66-5,049.24

Finding the Fourth Proportional to 11,289.78, 16,938.66 and 5,049.24

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Solution

The fourth proportional to 11,289.78, 16,938.66 and 5,049.24 is: 7,575.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,289.78 : 16,938.66 = 5,049.24 : x
  2. Step 2: Convert to fraction form
    11,289.78/16,938.66 = 5,049.24/x
  3. Step 3: Cross multiply
    11,289.78x = 16,938.66 × 5,049.24
  4. Step 4: Simplify right side
    11,289.78x = 85,527,359.62
  5. Step 5: Solve for x
    x = 85,527,359.62/11,289.78
  6. Step 6: Final answer
    x = 7,575.64

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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.