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Finding the Fourth Proportional to 18,297.99, 27,440.91 and 7,201.80

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Solution

The fourth proportional to 18,297.99, 27,440.91 and 7,201.80 is: 10,800.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,297.99 : 27,440.91 = 7,201.80 : x
  2. Step 2: Convert to fraction form
    18,297.99/27,440.91 = 7,201.80/x
  3. Step 3: Cross multiply
    18,297.99x = 27,440.91 × 7,201.80
  4. Step 4: Simplify right side
    18,297.99x = 197,623,945.64
  5. Step 5: Solve for x
    x = 197,623,945.64/18,297.99
  6. Step 6: Final answer
    x = 10,800.31

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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.