Home / 12,108.75-18,164.10-3,343.65

Finding the Fourth Proportional to 12,108.75, 18,164.10 and 3,343.65

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Solution

The fourth proportional to 12,108.75, 18,164.10 and 3,343.65 is: 5,015.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,108.75 : 18,164.10 = 3,343.65 : x
  2. Step 2: Convert to fraction form
    12,108.75/18,164.10 = 3,343.65/x
  3. Step 3: Cross multiply
    12,108.75x = 18,164.10 × 3,343.65
  4. Step 4: Simplify right side
    12,108.75x = 60,734,392.97
  5. Step 5: Solve for x
    x = 60,734,392.97/12,108.75
  6. Step 6: Final answer
    x = 5,015.74

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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.