Home / 13,447.83-20,171.75-4,087.82

Finding the Fourth Proportional to 13,447.83, 20,171.75 and 4,087.82

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Solution

The fourth proportional to 13,447.83, 20,171.75 and 4,087.82 is: 6,131.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,447.83 : 20,171.75 = 4,087.82 : x
  2. Step 2: Convert to fraction form
    13,447.83/20,171.75 = 4,087.82/x
  3. Step 3: Cross multiply
    13,447.83x = 20,171.75 × 4,087.82
  4. Step 4: Simplify right side
    13,447.83x = 82,458,361.79
  5. Step 5: Solve for x
    x = 82,458,361.79/13,447.83
  6. Step 6: Final answer
    x = 6,131.72

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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.