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Finding the Fourth Proportional to 6,661.69, 9,993.74 and 3,331.68

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Solution

The fourth proportional to 6,661.69, 9,993.74 and 3,331.68 is: 4,998.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,661.69 : 9,993.74 = 3,331.68 : x
  2. Step 2: Convert to fraction form
    6,661.69/9,993.74 = 3,331.68/x
  3. Step 3: Cross multiply
    6,661.69x = 9,993.74 × 3,331.68
  4. Step 4: Simplify right side
    6,661.69x = 33,295,877.06
  5. Step 5: Solve for x
    x = 33,295,877.06/6,661.69
  6. Step 6: Final answer
    x = 4,998.11

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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.