Home / 13,663.36-20,469.12-8,104.96

Finding the Fourth Proportional to 13,663.36, 20,469.12 and 8,104.96

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Solution

The fourth proportional to 13,663.36, 20,469.12 and 8,104.96 is: 12,142.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,663.36 : 20,469.12 = 8,104.96 : x
  2. Step 2: Convert to fraction form
    13,663.36/20,469.12 = 8,104.96/x
  3. Step 3: Cross multiply
    13,663.36x = 20,469.12 × 8,104.96
  4. Step 4: Simplify right side
    13,663.36x = 165,901,398.84
  5. Step 5: Solve for x
    x = 165,901,398.84/13,663.36
  6. Step 6: Final answer
    x = 12,142.06

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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.