Home / 12,074.40-18,110.84-3,640.73

Finding the Fourth Proportional to 12,074.40, 18,110.84 and 3,640.73

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Solution

The fourth proportional to 12,074.40, 18,110.84 and 3,640.73 is: 5,460.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,074.40 : 18,110.84 = 3,640.73 : x
  2. Step 2: Convert to fraction form
    12,074.40/18,110.84 = 3,640.73/x
  3. Step 3: Cross multiply
    12,074.40x = 18,110.84 × 3,640.73
  4. Step 4: Simplify right side
    12,074.40x = 65,936,569.76
  5. Step 5: Solve for x
    x = 65,936,569.76/12,074.40
  6. Step 6: Final answer
    x = 5,460.86

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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.