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Finding the Fourth Proportional to 17,348.49, 25,980.78 and 9,930.45

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Solution

The fourth proportional to 17,348.49, 25,980.78 and 9,930.45 is: 14,871.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,348.49 : 25,980.78 = 9,930.45 : x
  2. Step 2: Convert to fraction form
    17,348.49/25,980.78 = 9,930.45/x
  3. Step 3: Cross multiply
    17,348.49x = 25,980.78 × 9,930.45
  4. Step 4: Simplify right side
    17,348.49x = 258,000,836.75
  5. Step 5: Solve for x
    x = 258,000,836.75/17,348.49
  6. Step 6: Final answer
    x = 14,871.66

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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.