Home / 12,173.09-18,245.05-4,372.79

Finding the Fourth Proportional to 12,173.09, 18,245.05 and 4,372.79

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Solution

The fourth proportional to 12,173.09, 18,245.05 and 4,372.79 is: 6,553.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,173.09 : 18,245.05 = 4,372.79 : x
  2. Step 2: Convert to fraction form
    12,173.09/18,245.05 = 4,372.79/x
  3. Step 3: Cross multiply
    12,173.09x = 18,245.05 × 4,372.79
  4. Step 4: Simplify right side
    12,173.09x = 79,781,670.03
  5. Step 5: Solve for x
    x = 79,781,670.03/12,173.09
  6. Step 6: Final answer
    x = 6,553.94

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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.