Home / 8,738.19-13,109.36-3,808.71

Finding the Fourth Proportional to 8,738.19, 13,109.36 and 3,808.71

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Solution

The fourth proportional to 8,738.19, 13,109.36 and 3,808.71 is: 5,713.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,738.19 : 13,109.36 = 3,808.71 : x
  2. Step 2: Convert to fraction form
    8,738.19/13,109.36 = 3,808.71/x
  3. Step 3: Cross multiply
    8,738.19x = 13,109.36 × 3,808.71
  4. Step 4: Simplify right side
    8,738.19x = 49,929,731.48
  5. Step 5: Solve for x
    x = 49,929,731.48/8,738.19
  6. Step 6: Final answer
    x = 5,713.97

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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.