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Finding the Fourth Proportional to 12,363.45, 18,455.24 and 11,449.77

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Solution

The fourth proportional to 12,363.45, 18,455.24 and 11,449.77 is: 17,091.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,363.45 : 18,455.24 = 11,449.77 : x
  2. Step 2: Convert to fraction form
    12,363.45/18,455.24 = 11,449.77/x
  3. Step 3: Cross multiply
    12,363.45x = 18,455.24 × 11,449.77
  4. Step 4: Simplify right side
    12,363.45x = 211,308,253.29
  5. Step 5: Solve for x
    x = 211,308,253.29/12,363.45
  6. Step 6: Final answer
    x = 17,091.37

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.