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Finding the Fourth Proportional to 17,955.84, 26,940.24 and 6,270.78

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Solution

The fourth proportional to 17,955.84, 26,940.24 and 6,270.78 is: 9,408.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,955.84 : 26,940.24 = 6,270.78 : x
  2. Step 2: Convert to fraction form
    17,955.84/26,940.24 = 6,270.78/x
  3. Step 3: Cross multiply
    17,955.84x = 26,940.24 × 6,270.78
  4. Step 4: Simplify right side
    17,955.84x = 168,936,318.19
  5. Step 5: Solve for x
    x = 168,936,318.19/17,955.84
  6. Step 6: Final answer
    x = 9,408.43

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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.