Home / 12,083.46-18,125.40-3,318.32

Finding the Fourth Proportional to 12,083.46, 18,125.40 and 3,318.32

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Solution

The fourth proportional to 12,083.46, 18,125.40 and 3,318.32 is: 4,977.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,083.46 : 18,125.40 = 3,318.32 : x
  2. Step 2: Convert to fraction form
    12,083.46/18,125.40 = 3,318.32/x
  3. Step 3: Cross multiply
    12,083.46x = 18,125.40 × 3,318.32
  4. Step 4: Simplify right side
    12,083.46x = 60,145,786.70
  5. Step 5: Solve for x
    x = 60,145,786.70/12,083.46
  6. Step 6: Final answer
    x = 4,977.53

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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.