Home / 9,128.70-13,694.46-3,863.74

Finding the Fourth Proportional to 9,128.70, 13,694.46 and 3,863.74

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Solution

The fourth proportional to 9,128.70, 13,694.46 and 3,863.74 is: 5,796.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.70 : 13,694.46 = 3,863.74 : x
  2. Step 2: Convert to fraction form
    9,128.70/13,694.46 = 3,863.74/x
  3. Step 3: Cross multiply
    9,128.70x = 13,694.46 × 3,863.74
  4. Step 4: Simplify right side
    9,128.70x = 52,911,832.88
  5. Step 5: Solve for x
    x = 52,911,832.88/9,128.70
  6. Step 6: Final answer
    x = 5,796.21

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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.