Home / 8,111.87-12,167.82-2,268.53

Finding the Fourth Proportional to 8,111.87, 12,167.82 and 2,268.53

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Solution

The fourth proportional to 8,111.87, 12,167.82 and 2,268.53 is: 3,402.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,111.87 : 12,167.82 = 2,268.53 : x
  2. Step 2: Convert to fraction form
    8,111.87/12,167.82 = 2,268.53/x
  3. Step 3: Cross multiply
    8,111.87x = 12,167.82 × 2,268.53
  4. Step 4: Simplify right side
    8,111.87x = 27,603,064.70
  5. Step 5: Solve for x
    x = 27,603,064.70/8,111.87
  6. Step 6: Final answer
    x = 3,402.80

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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.