Home / 11,247.18-16,872.81-5,627.78

Finding the Fourth Proportional to 11,247.18, 16,872.81 and 5,627.78

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Solution

The fourth proportional to 11,247.18, 16,872.81 and 5,627.78 is: 8,442.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,247.18 : 16,872.81 = 5,627.78 : x
  2. Step 2: Convert to fraction form
    11,247.18/16,872.81 = 5,627.78/x
  3. Step 3: Cross multiply
    11,247.18x = 16,872.81 × 5,627.78
  4. Step 4: Simplify right side
    11,247.18x = 94,956,525.95
  5. Step 5: Solve for x
    x = 94,956,525.95/11,247.18
  6. Step 6: Final answer
    x = 8,442.70

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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.