Home / 11,007.78-16,500.66-5,153.88

Finding the Fourth Proportional to 11,007.78, 16,500.66 and 5,153.88

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Solution

The fourth proportional to 11,007.78, 16,500.66 and 5,153.88 is: 7,725.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,007.78 : 16,500.66 = 5,153.88 : x
  2. Step 2: Convert to fraction form
    11,007.78/16,500.66 = 5,153.88/x
  3. Step 3: Cross multiply
    11,007.78x = 16,500.66 × 5,153.88
  4. Step 4: Simplify right side
    11,007.78x = 85,042,421.56
  5. Step 5: Solve for x
    x = 85,042,421.56/11,007.78
  6. Step 6: Final answer
    x = 7,725.67

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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.