Home / 13,450.35-20,170.47-4,087.62

Finding the Fourth Proportional to 13,450.35, 20,170.47 and 4,087.62

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Solution

The fourth proportional to 13,450.35, 20,170.47 and 4,087.62 is: 6,129.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,450.35 : 20,170.47 = 4,087.62 : x
  2. Step 2: Convert to fraction form
    13,450.35/20,170.47 = 4,087.62/x
  3. Step 3: Cross multiply
    13,450.35x = 20,170.47 × 4,087.62
  4. Step 4: Simplify right side
    13,450.35x = 82,449,216.58
  5. Step 5: Solve for x
    x = 82,449,216.58/13,450.35
  6. Step 6: Final answer
    x = 6,129.89

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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.