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Finding the Fourth Proportional to 9,997.79, 15,004.11 and 3,763.94

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Solution

The fourth proportional to 9,997.79, 15,004.11 and 3,763.94 is: 5,648.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,997.79 : 15,004.11 = 3,763.94 : x
  2. Step 2: Convert to fraction form
    9,997.79/15,004.11 = 3,763.94/x
  3. Step 3: Cross multiply
    9,997.79x = 15,004.11 × 3,763.94
  4. Step 4: Simplify right side
    9,997.79x = 56,474,569.79
  5. Step 5: Solve for x
    x = 56,474,569.79/9,997.79
  6. Step 6: Final answer
    x = 5,648.71

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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.