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Finding the Fourth Proportional to 8,020.80, 11,072.07 and 5,913.07

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Solution

The fourth proportional to 8,020.80, 11,072.07 and 5,913.07 is: 8,162.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,020.80 : 11,072.07 = 5,913.07 : x
  2. Step 2: Convert to fraction form
    8,020.80/11,072.07 = 5,913.07/x
  3. Step 3: Cross multiply
    8,020.80x = 11,072.07 × 5,913.07
  4. Step 4: Simplify right side
    8,020.80x = 65,469,897.27
  5. Step 5: Solve for x
    x = 65,469,897.27/8,020.80
  6. Step 6: Final answer
    x = 8,162.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.