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Finding the Fourth Proportional to 6,668.97, 9,997.84 and 3,156.94

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Solution

The fourth proportional to 6,668.97, 9,997.84 and 3,156.94 is: 4,732.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,668.97 : 9,997.84 = 3,156.94 : x
  2. Step 2: Convert to fraction form
    6,668.97/9,997.84 = 3,156.94/x
  3. Step 3: Cross multiply
    6,668.97x = 9,997.84 × 3,156.94
  4. Step 4: Simplify right side
    6,668.97x = 31,562,581.01
  5. Step 5: Solve for x
    x = 31,562,581.01/6,668.97
  6. Step 6: Final answer
    x = 4,732.75

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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.