Home / 12,144.22-18,219.07-3,711.49

Finding the Fourth Proportional to 12,144.22, 18,219.07 and 3,711.49

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Solution

The fourth proportional to 12,144.22, 18,219.07 and 3,711.49 is: 5,568.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,144.22 : 18,219.07 = 3,711.49 : x
  2. Step 2: Convert to fraction form
    12,144.22/18,219.07 = 3,711.49/x
  3. Step 3: Cross multiply
    12,144.22x = 18,219.07 × 3,711.49
  4. Step 4: Simplify right side
    12,144.22x = 67,619,795.74
  5. Step 5: Solve for x
    x = 67,619,795.74/12,144.22
  6. Step 6: Final answer
    x = 5,568.07

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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.