Home / 8,738.91-13,105.18-3,807.36

Finding the Fourth Proportional to 8,738.91, 13,105.18 and 3,807.36

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Solution

The fourth proportional to 8,738.91, 13,105.18 and 3,807.36 is: 5,709.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,738.91 : 13,105.18 = 3,807.36 : x
  2. Step 2: Convert to fraction form
    8,738.91/13,105.18 = 3,807.36/x
  3. Step 3: Cross multiply
    8,738.91x = 13,105.18 × 3,807.36
  4. Step 4: Simplify right side
    8,738.91x = 49,896,138.12
  5. Step 5: Solve for x
    x = 49,896,138.12/8,738.91
  6. Step 6: Final answer
    x = 5,709.65

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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.