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Finding the Fourth Proportional to 17,969.36, 26,955 and 5,489.76

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Solution

The fourth proportional to 17,969.36, 26,955 and 5,489.76 is: 8,234.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,969.36 : 26,955 = 5,489.76 : x
  2. Step 2: Convert to fraction form
    17,969.36/26,955 = 5,489.76/x
  3. Step 3: Cross multiply
    17,969.36x = 26,955 × 5,489.76
  4. Step 4: Simplify right side
    17,969.36x = 147,976,480.80
  5. Step 5: Solve for x
    x = 147,976,480.80/17,969.36
  6. Step 6: Final answer
    x = 8,234.93

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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.