Home / 8,738.42-13,110.57-3,811.28

Finding the Fourth Proportional to 8,738.42, 13,110.57 and 3,811.28

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Solution

The fourth proportional to 8,738.42, 13,110.57 and 3,811.28 is: 5,718.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,738.42 : 13,110.57 = 3,811.28 : x
  2. Step 2: Convert to fraction form
    8,738.42/13,110.57 = 3,811.28/x
  3. Step 3: Cross multiply
    8,738.42x = 13,110.57 × 3,811.28
  4. Step 4: Simplify right side
    8,738.42x = 49,967,987.68
  5. Step 5: Solve for x
    x = 49,967,987.68/8,738.42
  6. Step 6: Final answer
    x = 5,718.20

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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.