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Finding the Fourth Proportional to 18,603.23, 25,672.93 and 10,105.35

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Solution

The fourth proportional to 18,603.23, 25,672.93 and 10,105.35 is: 13,945.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,603.23 : 25,672.93 = 10,105.35 : x
  2. Step 2: Convert to fraction form
    18,603.23/25,672.93 = 10,105.35/x
  3. Step 3: Cross multiply
    18,603.23x = 25,672.93 × 10,105.35
  4. Step 4: Simplify right side
    18,603.23x = 259,433,892.65
  5. Step 5: Solve for x
    x = 259,433,892.65/18,603.23
  6. Step 6: Final answer
    x = 13,945.64

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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.