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Finding the Fourth Proportional to 19,398.25, 26,772.83 and 11,442.43

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Solution

The fourth proportional to 19,398.25, 26,772.83 and 11,442.43 is: 15,792.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,398.25 : 26,772.83 = 11,442.43 : x
  2. Step 2: Convert to fraction form
    19,398.25/26,772.83 = 11,442.43/x
  3. Step 3: Cross multiply
    19,398.25x = 26,772.83 × 11,442.43
  4. Step 4: Simplify right side
    19,398.25x = 306,346,233.18
  5. Step 5: Solve for x
    x = 306,346,233.18/19,398.25
  6. Step 6: Final answer
    x = 15,792.47

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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.