Home / 8,117.52-12,168.99-2,919.75

Finding the Fourth Proportional to 8,117.52, 12,168.99 and 2,919.75

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Solution

The fourth proportional to 8,117.52, 12,168.99 and 2,919.75 is: 4,377.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,117.52 : 12,168.99 = 2,919.75 : x
  2. Step 2: Convert to fraction form
    8,117.52/12,168.99 = 2,919.75/x
  3. Step 3: Cross multiply
    8,117.52x = 12,168.99 × 2,919.75
  4. Step 4: Simplify right side
    8,117.52x = 35,530,408.55
  5. Step 5: Solve for x
    x = 35,530,408.55/8,117.52
  6. Step 6: Final answer
    x = 4,377.00

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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.