Home / 11,719.89-16,173.39-6,414.66

Finding the Fourth Proportional to 11,719.89, 16,173.39 and 6,414.66

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Solution

The fourth proportional to 11,719.89, 16,173.39 and 6,414.66 is: 8,852.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,719.89 : 16,173.39 = 6,414.66 : x
  2. Step 2: Convert to fraction form
    11,719.89/16,173.39 = 6,414.66/x
  3. Step 3: Cross multiply
    11,719.89x = 16,173.39 × 6,414.66
  4. Step 4: Simplify right side
    11,719.89x = 103,746,797.90
  5. Step 5: Solve for x
    x = 103,746,797.90/11,719.89
  6. Step 6: Final answer
    x = 8,852.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.