Home / 10,916.78-16,364.62-3,516.22

Finding the Fourth Proportional to 10,916.78, 16,364.62 and 3,516.22

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Solution

The fourth proportional to 10,916.78, 16,364.62 and 3,516.22 is: 5,270.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,916.78 : 16,364.62 = 3,516.22 : x
  2. Step 2: Convert to fraction form
    10,916.78/16,364.62 = 3,516.22/x
  3. Step 3: Cross multiply
    10,916.78x = 16,364.62 × 3,516.22
  4. Step 4: Simplify right side
    10,916.78x = 57,541,604.14
  5. Step 5: Solve for x
    x = 57,541,604.14/10,916.78
  6. Step 6: Final answer
    x = 5,270.93

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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.