Home / 13,105.54-19,661.35-3,745.68

Finding the Fourth Proportional to 13,105.54, 19,661.35 and 3,745.68

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Solution

The fourth proportional to 13,105.54, 19,661.35 and 3,745.68 is: 5,619.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,105.54 : 19,661.35 = 3,745.68 : x
  2. Step 2: Convert to fraction form
    13,105.54/19,661.35 = 3,745.68/x
  3. Step 3: Cross multiply
    13,105.54x = 19,661.35 × 3,745.68
  4. Step 4: Simplify right side
    13,105.54x = 73,645,125.47
  5. Step 5: Solve for x
    x = 73,645,125.47/13,105.54
  6. Step 6: Final answer
    x = 5,619.39

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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.