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Finding the Fourth Proportional to 18,144.48, 27,224.52 and 7,617

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Solution

The fourth proportional to 18,144.48, 27,224.52 and 7,617 is: 11,428.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144.48 : 27,224.52 = 7,617 : x
  2. Step 2: Convert to fraction form
    18,144.48/27,224.52 = 7,617/x
  3. Step 3: Cross multiply
    18,144.48x = 27,224.52 × 7,617
  4. Step 4: Simplify right side
    18,144.48x = 207,369,168.84
  5. Step 5: Solve for x
    x = 207,369,168.84/18,144.48
  6. Step 6: Final answer
    x = 11,428.77

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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.