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Finding the Fourth Proportional to 13,808.73, 19,067.30 and 11,256.90

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Solution

The fourth proportional to 13,808.73, 19,067.30 and 11,256.90 is: 15,543.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,808.73 : 19,067.30 = 11,256.90 : x
  2. Step 2: Convert to fraction form
    13,808.73/19,067.30 = 11,256.90/x
  3. Step 3: Cross multiply
    13,808.73x = 19,067.30 × 11,256.90
  4. Step 4: Simplify right side
    13,808.73x = 214,638,689.37
  5. Step 5: Solve for x
    x = 214,638,689.37/13,808.73
  6. Step 6: Final answer
    x = 15,543.70

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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.