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Finding the Fourth Proportional to 6,668.93, 9,997.73 and 2,666.72

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Solution

The fourth proportional to 6,668.93, 9,997.73 and 2,666.72 is: 3,997.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,668.93 : 9,997.73 = 2,666.72 : x
  2. Step 2: Convert to fraction form
    6,668.93/9,997.73 = 2,666.72/x
  3. Step 3: Cross multiply
    6,668.93x = 9,997.73 × 2,666.72
  4. Step 4: Simplify right side
    6,668.93x = 26,661,168.21
  5. Step 5: Solve for x
    x = 26,661,168.21/6,668.93
  6. Step 6: Final answer
    x = 3,997.82

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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.