Home / 12,173.25-18,259.89-2,939.25

Finding the Fourth Proportional to 12,173.25, 18,259.89 and 2,939.25

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Solution

The fourth proportional to 12,173.25, 18,259.89 and 2,939.25 is: 4,408.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,173.25 : 18,259.89 = 2,939.25 : x
  2. Step 2: Convert to fraction form
    12,173.25/18,259.89 = 2,939.25/x
  3. Step 3: Cross multiply
    12,173.25x = 18,259.89 × 2,939.25
  4. Step 4: Simplify right side
    12,173.25x = 53,670,381.68
  5. Step 5: Solve for x
    x = 53,670,381.68/12,173.25
  6. Step 6: Final answer
    x = 4,408.88

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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.