Home / 11,709.72-17,560.91-3,916.70

Finding the Fourth Proportional to 11,709.72, 17,560.91 and 3,916.70

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Solution

The fourth proportional to 11,709.72, 17,560.91 and 3,916.70 is: 5,873.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,709.72 : 17,560.91 = 3,916.70 : x
  2. Step 2: Convert to fraction form
    11,709.72/17,560.91 = 3,916.70/x
  3. Step 3: Cross multiply
    11,709.72x = 17,560.91 × 3,916.70
  4. Step 4: Simplify right side
    11,709.72x = 68,780,816.20
  5. Step 5: Solve for x
    x = 68,780,816.20/11,709.72
  6. Step 6: Final answer
    x = 5,873.82

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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.