Home / 17,072.78-25,612.65-9,680.54

Finding the Fourth Proportional to 17,072.78, 25,612.65 and 9,680.54

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Solution

The fourth proportional to 17,072.78, 25,612.65 and 9,680.54 is: 14,522.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,072.78 : 25,612.65 = 9,680.54 : x
  2. Step 2: Convert to fraction form
    17,072.78/25,612.65 = 9,680.54/x
  3. Step 3: Cross multiply
    17,072.78x = 25,612.65 × 9,680.54
  4. Step 4: Simplify right side
    17,072.78x = 247,944,282.83
  5. Step 5: Solve for x
    x = 247,944,282.83/17,072.78
  6. Step 6: Final answer
    x = 14,522.78

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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.