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Finding the Fourth Proportional to 11,295.78, 16,940.10 and 10,558.71

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Solution

The fourth proportional to 11,295.78, 16,940.10 and 10,558.71 is: 15,834.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,295.78 : 16,940.10 = 10,558.71 : x
  2. Step 2: Convert to fraction form
    11,295.78/16,940.10 = 10,558.71/x
  3. Step 3: Cross multiply
    11,295.78x = 16,940.10 × 10,558.71
  4. Step 4: Simplify right side
    11,295.78x = 178,865,603.27
  5. Step 5: Solve for x
    x = 178,865,603.27/11,295.78
  6. Step 6: Final answer
    x = 15,834.73

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1.5x scale

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.