Home / 8,677.39-13,015.97-2,103.64

Finding the Fourth Proportional to 8,677.39, 13,015.97 and 2,103.64

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Solution

The fourth proportional to 8,677.39, 13,015.97 and 2,103.64 is: 3,155.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,677.39 : 13,015.97 = 2,103.64 : x
  2. Step 2: Convert to fraction form
    8,677.39/13,015.97 = 2,103.64/x
  3. Step 3: Cross multiply
    8,677.39x = 13,015.97 × 2,103.64
  4. Step 4: Simplify right side
    8,677.39x = 27,380,850.05
  5. Step 5: Solve for x
    x = 27,380,850.05/8,677.39
  6. Step 6: Final answer
    x = 3,155.42

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1.5x scale

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.