Home / 11,381.16-17,076.78-4,811.88

Finding the Fourth Proportional to 11,381.16, 17,076.78 and 4,811.88

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Solution

The fourth proportional to 11,381.16, 17,076.78 and 4,811.88 is: 7,219.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,381.16 : 17,076.78 = 4,811.88 : x
  2. Step 2: Convert to fraction form
    11,381.16/17,076.78 = 4,811.88/x
  3. Step 3: Cross multiply
    11,381.16x = 17,076.78 × 4,811.88
  4. Step 4: Simplify right side
    11,381.16x = 82,171,416.15
  5. Step 5: Solve for x
    x = 82,171,416.15/11,381.16
  6. Step 6: Final answer
    x = 7,219.95

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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.