Home / 13,190.76-19,786.14-3,330

Finding the Fourth Proportional to 13,190.76, 19,786.14 and 3,330

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Solution

The fourth proportional to 13,190.76, 19,786.14 and 3,330 is: 4,995

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190.76 : 19,786.14 = 3,330 : x
  2. Step 2: Convert to fraction form
    13,190.76/19,786.14 = 3,330/x
  3. Step 3: Cross multiply
    13,190.76x = 19,786.14 × 3,330
  4. Step 4: Simplify right side
    13,190.76x = 65,887,846.20
  5. Step 5: Solve for x
    x = 65,887,846.20/13,190.76
  6. Step 6: Final answer
    x = 4,995

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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.