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Finding the Fourth Proportional to 7,470.43, 11,197.21 and 3,309.89

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Solution

The fourth proportional to 7,470.43, 11,197.21 and 3,309.89 is: 4,961.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,470.43 : 11,197.21 = 3,309.89 : x
  2. Step 2: Convert to fraction form
    7,470.43/11,197.21 = 3,309.89/x
  3. Step 3: Cross multiply
    7,470.43x = 11,197.21 × 3,309.89
  4. Step 4: Simplify right side
    7,470.43x = 37,061,516.15
  5. Step 5: Solve for x
    x = 37,061,516.15/7,470.43
  6. Step 6: Final answer
    x = 4,961.10

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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.