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Finding the Fourth Proportional to 18,221.70, 27,332.03 and 9,954.07

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Solution

The fourth proportional to 18,221.70, 27,332.03 and 9,954.07 is: 14,930.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,221.70 : 27,332.03 = 9,954.07 : x
  2. Step 2: Convert to fraction form
    18,221.70/27,332.03 = 9,954.07/x
  3. Step 3: Cross multiply
    18,221.70x = 27,332.03 × 9,954.07
  4. Step 4: Simplify right side
    18,221.70x = 272,064,906.03
  5. Step 5: Solve for x
    x = 272,064,906.03/18,221.70
  6. Step 6: Final answer
    x = 14,930.82

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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.