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Finding the Fourth Proportional to 13,328.10, 20,004.30 and 11,481.30

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Solution

The fourth proportional to 13,328.10, 20,004.30 and 11,481.30 is: 17,232.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328.10 : 20,004.30 = 11,481.30 : x
  2. Step 2: Convert to fraction form
    13,328.10/20,004.30 = 11,481.30/x
  3. Step 3: Cross multiply
    13,328.10x = 20,004.30 × 11,481.30
  4. Step 4: Simplify right side
    13,328.10x = 229,675,369.59
  5. Step 5: Solve for x
    x = 229,675,369.59/13,328.10
  6. Step 6: Final answer
    x = 17,232.42

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1.5x scale

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.