Home / 8,268.62-12,392.36-3,876.40

Finding the Fourth Proportional to 8,268.62, 12,392.36 and 3,876.40

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Solution

The fourth proportional to 8,268.62, 12,392.36 and 3,876.40 is: 5,809.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,268.62 : 12,392.36 = 3,876.40 : x
  2. Step 2: Convert to fraction form
    8,268.62/12,392.36 = 3,876.40/x
  3. Step 3: Cross multiply
    8,268.62x = 12,392.36 × 3,876.40
  4. Step 4: Simplify right side
    8,268.62x = 48,037,744.30
  5. Step 5: Solve for x
    x = 48,037,744.30/8,268.62
  6. Step 6: Final answer
    x = 5,809.64

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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.