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Finding the Fourth Proportional to 18,630.39, 27,945.79 and 5,483.01

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Solution

The fourth proportional to 18,630.39, 27,945.79 and 5,483.01 is: 8,224.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,630.39 : 27,945.79 = 5,483.01 : x
  2. Step 2: Convert to fraction form
    18,630.39/27,945.79 = 5,483.01/x
  3. Step 3: Cross multiply
    18,630.39x = 27,945.79 × 5,483.01
  4. Step 4: Simplify right side
    18,630.39x = 153,227,046.03
  5. Step 5: Solve for x
    x = 153,227,046.03/18,630.39
  6. Step 6: Final answer
    x = 8,224.58

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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.