Home / 13,663.13-20,481.01-5,331.68

Finding the Fourth Proportional to 13,663.13, 20,481.01 and 5,331.68

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Solution

The fourth proportional to 13,663.13, 20,481.01 and 5,331.68 is: 7,992.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,663.13 : 20,481.01 = 5,331.68 : x
  2. Step 2: Convert to fraction form
    13,663.13/20,481.01 = 5,331.68/x
  3. Step 3: Cross multiply
    13,663.13x = 20,481.01 × 5,331.68
  4. Step 4: Simplify right side
    13,663.13x = 109,198,191.40
  5. Step 5: Solve for x
    x = 109,198,191.40/13,663.13
  6. Step 6: Final answer
    x = 7,992.18

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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.