Home / 13,447.75-20,171.61-4,087.74

Finding the Fourth Proportional to 13,447.75, 20,171.61 and 4,087.74

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Solution

The fourth proportional to 13,447.75, 20,171.61 and 4,087.74 is: 6,131.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,447.75 : 20,171.61 = 4,087.74 : x
  2. Step 2: Convert to fraction form
    13,447.75/20,171.61 = 4,087.74/x
  3. Step 3: Cross multiply
    13,447.75x = 20,171.61 × 4,087.74
  4. Step 4: Simplify right side
    13,447.75x = 82,456,297.06
  5. Step 5: Solve for x
    x = 82,456,297.06/13,447.75
  6. Step 6: Final answer
    x = 6,131.61

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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.