Home / 13,917.05-20,878.49-4,556.35

Finding the Fourth Proportional to 13,917.05, 20,878.49 and 4,556.35

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Solution

The fourth proportional to 13,917.05, 20,878.49 and 4,556.35 is: 6,835.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.05 : 20,878.49 = 4,556.35 : x
  2. Step 2: Convert to fraction form
    13,917.05/20,878.49 = 4,556.35/x
  3. Step 3: Cross multiply
    13,917.05x = 20,878.49 × 4,556.35
  4. Step 4: Simplify right side
    13,917.05x = 95,129,745.40
  5. Step 5: Solve for x
    x = 95,129,745.40/13,917.05
  6. Step 6: Final answer
    x = 6,835.48

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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.