Home / 13,771.31-20,650.56-6,751.67

Finding the Fourth Proportional to 13,771.31, 20,650.56 and 6,751.67

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Solution

The fourth proportional to 13,771.31, 20,650.56 and 6,751.67 is: 10,124.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,771.31 : 20,650.56 = 6,751.67 : x
  2. Step 2: Convert to fraction form
    13,771.31/20,650.56 = 6,751.67/x
  3. Step 3: Cross multiply
    13,771.31x = 20,650.56 × 6,751.67
  4. Step 4: Simplify right side
    13,771.31x = 139,425,766.44
  5. Step 5: Solve for x
    x = 139,425,766.44/13,771.31
  6. Step 6: Final answer
    x = 10,124.36

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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.