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Finding the Fourth Proportional to 18,292.47, 25,243.45 and 9,908.97

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Solution

The fourth proportional to 18,292.47, 25,243.45 and 9,908.97 is: 13,674.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,292.47 : 25,243.45 = 9,908.97 : x
  2. Step 2: Convert to fraction form
    18,292.47/25,243.45 = 9,908.97/x
  3. Step 3: Cross multiply
    18,292.47x = 25,243.45 × 9,908.97
  4. Step 4: Simplify right side
    18,292.47x = 250,136,588.75
  5. Step 5: Solve for x
    x = 250,136,588.75/18,292.47
  6. Step 6: Final answer
    x = 13,674.29

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.