Home / 12,083.87-18,125.58-3,318.46

Finding the Fourth Proportional to 12,083.87, 18,125.58 and 3,318.46

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Solution

The fourth proportional to 12,083.87, 18,125.58 and 3,318.46 is: 4,977.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,083.87 : 18,125.58 = 3,318.46 : x
  2. Step 2: Convert to fraction form
    12,083.87/18,125.58 = 3,318.46/x
  3. Step 3: Cross multiply
    12,083.87x = 18,125.58 × 3,318.46
  4. Step 4: Simplify right side
    12,083.87x = 60,149,012.21
  5. Step 5: Solve for x
    x = 60,149,012.21/12,083.87
  6. Step 6: Final answer
    x = 4,977.63

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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.