Home / 14,261.12-21,391.61-3,872.87

Finding the Fourth Proportional to 14,261.12, 21,391.61 and 3,872.87

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Solution

The fourth proportional to 14,261.12, 21,391.61 and 3,872.87 is: 5,809.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,261.12 : 21,391.61 = 3,872.87 : x
  2. Step 2: Convert to fraction form
    14,261.12/21,391.61 = 3,872.87/x
  3. Step 3: Cross multiply
    14,261.12x = 21,391.61 × 3,872.87
  4. Step 4: Simplify right side
    14,261.12x = 82,846,958.74
  5. Step 5: Solve for x
    x = 82,846,958.74/14,261.12
  6. Step 6: Final answer
    x = 5,809.29

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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.