Home / 13,786.22-20,668.98-6,764.06

Finding the Fourth Proportional to 13,786.22, 20,668.98 and 6,764.06

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Solution

The fourth proportional to 13,786.22, 20,668.98 and 6,764.06 is: 10,141.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,786.22 : 20,668.98 = 6,764.06 : x
  2. Step 2: Convert to fraction form
    13,786.22/20,668.98 = 6,764.06/x
  3. Step 3: Cross multiply
    13,786.22x = 20,668.98 × 6,764.06
  4. Step 4: Simplify right side
    13,786.22x = 139,806,220.86
  5. Step 5: Solve for x
    x = 139,806,220.86/13,786.22
  6. Step 6: Final answer
    x = 10,141.01

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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.