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Finding the Fourth Proportional to 11,981.62, 17,852.03 and 11,310.94

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Solution

The fourth proportional to 11,981.62, 17,852.03 and 11,310.94 is: 16,852.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,981.62 : 17,852.03 = 11,310.94 : x
  2. Step 2: Convert to fraction form
    11,981.62/17,852.03 = 11,310.94/x
  3. Step 3: Cross multiply
    11,981.62x = 17,852.03 × 11,310.94
  4. Step 4: Simplify right side
    11,981.62x = 201,923,240.21
  5. Step 5: Solve for x
    x = 201,923,240.21/11,981.62
  6. Step 6: Final answer
    x = 16,852.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.