Home / 12,171.24-18,250.32-6,245.68

Finding the Fourth Proportional to 12,171.24, 18,250.32 and 6,245.68

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Solution

The fourth proportional to 12,171.24, 18,250.32 and 6,245.68 is: 9,365.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,171.24 : 18,250.32 = 6,245.68 : x
  2. Step 2: Convert to fraction form
    12,171.24/18,250.32 = 6,245.68/x
  3. Step 3: Cross multiply
    12,171.24x = 18,250.32 × 6,245.68
  4. Step 4: Simplify right side
    12,171.24x = 113,985,658.62
  5. Step 5: Solve for x
    x = 113,985,658.62/12,171.24
  6. Step 6: Final answer
    x = 9,365.16

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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.