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Finding the Fourth Proportional to 12,601.78, 17,389.69 and 7,295.57

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Solution

The fourth proportional to 12,601.78, 17,389.69 and 7,295.57 is: 10,067.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,601.78 : 17,389.69 = 7,295.57 : x
  2. Step 2: Convert to fraction form
    12,601.78/17,389.69 = 7,295.57/x
  3. Step 3: Cross multiply
    12,601.78x = 17,389.69 × 7,295.57
  4. Step 4: Simplify right side
    12,601.78x = 126,867,660.70
  5. Step 5: Solve for x
    x = 126,867,660.70/12,601.78
  6. Step 6: Final answer
    x = 10,067.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.