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Finding the Fourth Proportional to 17,768.79, 26,669.31 and 9,455.81

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Solution

The fourth proportional to 17,768.79, 26,669.31 and 9,455.81 is: 14,192.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,768.79 : 26,669.31 = 9,455.81 : x
  2. Step 2: Convert to fraction form
    17,768.79/26,669.31 = 9,455.81/x
  3. Step 3: Cross multiply
    17,768.79x = 26,669.31 × 9,455.81
  4. Step 4: Simplify right side
    17,768.79x = 252,179,759.39
  5. Step 5: Solve for x
    x = 252,179,759.39/17,768.79
  6. Step 6: Final answer
    x = 14,192.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.