Home / 11,769.87-17,639.80-5,516.09

Finding the Fourth Proportional to 11,769.87, 17,639.80 and 5,516.09

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Solution

The fourth proportional to 11,769.87, 17,639.80 and 5,516.09 is: 8,267.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,769.87 : 17,639.80 = 5,516.09 : x
  2. Step 2: Convert to fraction form
    11,769.87/17,639.80 = 5,516.09/x
  3. Step 3: Cross multiply
    11,769.87x = 17,639.80 × 5,516.09
  4. Step 4: Simplify right side
    11,769.87x = 97,302,754.69
  5. Step 5: Solve for x
    x = 97,302,754.69/11,769.87
  6. Step 6: Final answer
    x = 8,267.11

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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.