Home / 13,668.17-20,512.24-8,749.85

Finding the Fourth Proportional to 13,668.17, 20,512.24 and 8,749.85

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Solution

The fourth proportional to 13,668.17, 20,512.24 and 8,749.85 is: 13,131.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,668.17 : 20,512.24 = 8,749.85 : x
  2. Step 2: Convert to fraction form
    13,668.17/20,512.24 = 8,749.85/x
  3. Step 3: Cross multiply
    13,668.17x = 20,512.24 × 8,749.85
  4. Step 4: Simplify right side
    13,668.17x = 179,478,898.73
  5. Step 5: Solve for x
    x = 179,478,898.73/13,668.17
  6. Step 6: Final answer
    x = 13,131.16

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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.