Home / 12,744.21-19,120.38-5,346.68

Finding the Fourth Proportional to 12,744.21, 19,120.38 and 5,346.68

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Solution

The fourth proportional to 12,744.21, 19,120.38 and 5,346.68 is: 8,021.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,744.21 : 19,120.38 = 5,346.68 : x
  2. Step 2: Convert to fraction form
    12,744.21/19,120.38 = 5,346.68/x
  3. Step 3: Cross multiply
    12,744.21x = 19,120.38 × 5,346.68
  4. Step 4: Simplify right side
    12,744.21x = 102,230,614.05
  5. Step 5: Solve for x
    x = 102,230,614.05/12,744.21
  6. Step 6: Final answer
    x = 8,021.73

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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.