Home / 8,165.70-12,249.36-2,618.82

Finding the Fourth Proportional to 8,165.70, 12,249.36 and 2,618.82

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Solution

The fourth proportional to 8,165.70, 12,249.36 and 2,618.82 is: 3,928.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,165.70 : 12,249.36 = 2,618.82 : x
  2. Step 2: Convert to fraction form
    8,165.70/12,249.36 = 2,618.82/x
  3. Step 3: Cross multiply
    8,165.70x = 12,249.36 × 2,618.82
  4. Step 4: Simplify right side
    8,165.70x = 32,078,868.96
  5. Step 5: Solve for x
    x = 32,078,868.96/8,165.70
  6. Step 6: Final answer
    x = 3,928.49

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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.