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Finding the Fourth Proportional to 18,172, 27,258 and 4,845.04

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Solution

The fourth proportional to 18,172, 27,258 and 4,845.04 is: 7,267.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172 : 27,258 = 4,845.04 : x
  2. Step 2: Convert to fraction form
    18,172/27,258 = 4,845.04/x
  3. Step 3: Cross multiply
    18,172x = 27,258 × 4,845.04
  4. Step 4: Simplify right side
    18,172x = 132,066,100.32
  5. Step 5: Solve for x
    x = 132,066,100.32/18,172
  6. Step 6: Final answer
    x = 7,267.56

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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.