Home / 8,738.69-13,110.11-3,809.21

Finding the Fourth Proportional to 8,738.69, 13,110.11 and 3,809.21

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Solution

The fourth proportional to 8,738.69, 13,110.11 and 3,809.21 is: 5,714.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,738.69 : 13,110.11 = 3,809.21 : x
  2. Step 2: Convert to fraction form
    8,738.69/13,110.11 = 3,809.21/x
  3. Step 3: Cross multiply
    8,738.69x = 13,110.11 × 3,809.21
  4. Step 4: Simplify right side
    8,738.69x = 49,939,143.07
  5. Step 5: Solve for x
    x = 49,939,143.07/8,738.69
  6. Step 6: Final answer
    x = 5,714.72

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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.