Home / 12,173.22-18,259.85-2,939.22

Finding the Fourth Proportional to 12,173.22, 18,259.85 and 2,939.22

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Solution

The fourth proportional to 12,173.22, 18,259.85 and 2,939.22 is: 4,408.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,173.22 : 18,259.85 = 2,939.22 : x
  2. Step 2: Convert to fraction form
    12,173.22/18,259.85 = 2,939.22/x
  3. Step 3: Cross multiply
    12,173.22x = 18,259.85 × 2,939.22
  4. Step 4: Simplify right side
    12,173.22x = 53,669,716.32
  5. Step 5: Solve for x
    x = 53,669,716.32/12,173.22
  6. Step 6: Final answer
    x = 4,408.83

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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.