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Finding the Fourth Proportional to 11,996.71, 17,995.05 and 4,205.53

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Solution

The fourth proportional to 11,996.71, 17,995.05 and 4,205.53 is: 6,308.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,996.71 : 17,995.05 = 4,205.53 : x
  2. Step 2: Convert to fraction form
    11,996.71/17,995.05 = 4,205.53/x
  3. Step 3: Cross multiply
    11,996.71x = 17,995.05 × 4,205.53
  4. Step 4: Simplify right side
    11,996.71x = 75,678,632.65
  5. Step 5: Solve for x
    x = 75,678,632.65/11,996.71
  6. Step 6: Final answer
    x = 6,308.28

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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.