Home / 12,839.21-19,245.60-6,257.25

Finding the Fourth Proportional to 12,839.21, 19,245.60 and 6,257.25

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Solution

The fourth proportional to 12,839.21, 19,245.60 and 6,257.25 is: 9,379.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,839.21 : 19,245.60 = 6,257.25 : x
  2. Step 2: Convert to fraction form
    12,839.21/19,245.60 = 6,257.25/x
  3. Step 3: Cross multiply
    12,839.21x = 19,245.60 × 6,257.25
  4. Step 4: Simplify right side
    12,839.21x = 120,424,530.60
  5. Step 5: Solve for x
    x = 120,424,530.60/12,839.21
  6. Step 6: Final answer
    x = 9,379.43

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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.