Home / 13,190.28-19,786.74-4,872.48

Finding the Fourth Proportional to 13,190.28, 19,786.74 and 4,872.48

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Solution

The fourth proportional to 13,190.28, 19,786.74 and 4,872.48 is: 7,309.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190.28 : 19,786.74 = 4,872.48 : x
  2. Step 2: Convert to fraction form
    13,190.28/19,786.74 = 4,872.48/x
  3. Step 3: Cross multiply
    13,190.28x = 19,786.74 × 4,872.48
  4. Step 4: Simplify right side
    13,190.28x = 96,410,494.92
  5. Step 5: Solve for x
    x = 96,410,494.92/13,190.28
  6. Step 6: Final answer
    x = 7,309.21

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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.