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Finding the Fourth Proportional to 7,793.57, 11,686.25 and 5,329.09

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Solution

The fourth proportional to 7,793.57, 11,686.25 and 5,329.09 is: 7,990.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,793.57 : 11,686.25 = 5,329.09 : x
  2. Step 2: Convert to fraction form
    7,793.57/11,686.25 = 5,329.09/x
  3. Step 3: Cross multiply
    7,793.57x = 11,686.25 × 5,329.09
  4. Step 4: Simplify right side
    7,793.57x = 62,277,090.95
  5. Step 5: Solve for x
    x = 62,277,090.95/7,793.57
  6. Step 6: Final answer
    x = 7,990.83

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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.