Home / 13,705.77-20,556.32-4,939.41

Finding the Fourth Proportional to 13,705.77, 20,556.32 and 4,939.41

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Solution

The fourth proportional to 13,705.77, 20,556.32 and 4,939.41 is: 7,408.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,705.77 : 20,556.32 = 4,939.41 : x
  2. Step 2: Convert to fraction form
    13,705.77/20,556.32 = 4,939.41/x
  3. Step 3: Cross multiply
    13,705.77x = 20,556.32 × 4,939.41
  4. Step 4: Simplify right side
    13,705.77x = 101,536,067.87
  5. Step 5: Solve for x
    x = 101,536,067.87/13,705.77
  6. Step 6: Final answer
    x = 7,408.27

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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.