Home / 13,190.54-19,785.21-3,830.37

Finding the Fourth Proportional to 13,190.54, 19,785.21 and 3,830.37

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Solution

The fourth proportional to 13,190.54, 19,785.21 and 3,830.37 is: 5,745.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190.54 : 19,785.21 = 3,830.37 : x
  2. Step 2: Convert to fraction form
    13,190.54/19,785.21 = 3,830.37/x
  3. Step 3: Cross multiply
    13,190.54x = 19,785.21 × 3,830.37
  4. Step 4: Simplify right side
    13,190.54x = 75,784,674.83
  5. Step 5: Solve for x
    x = 75,784,674.83/13,190.54
  6. Step 6: Final answer
    x = 5,745.38

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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.