Home / 8,519.83-12,781.78-2,676.44

Finding the Fourth Proportional to 8,519.83, 12,781.78 and 2,676.44

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Solution

The fourth proportional to 8,519.83, 12,781.78 and 2,676.44 is: 4,015.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519.83 : 12,781.78 = 2,676.44 : x
  2. Step 2: Convert to fraction form
    8,519.83/12,781.78 = 2,676.44/x
  3. Step 3: Cross multiply
    8,519.83x = 12,781.78 × 2,676.44
  4. Step 4: Simplify right side
    8,519.83x = 34,209,667.26
  5. Step 5: Solve for x
    x = 34,209,667.26/8,519.83
  6. Step 6: Final answer
    x = 4,015.30

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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.