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Finding the Fourth Proportional to 7,844.25, 11,809.17 and 7,155.33

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Solution

The fourth proportional to 7,844.25, 11,809.17 and 7,155.33 is: 10,772.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,844.25 : 11,809.17 = 7,155.33 : x
  2. Step 2: Convert to fraction form
    7,844.25/11,809.17 = 7,155.33/x
  3. Step 3: Cross multiply
    7,844.25x = 11,809.17 × 7,155.33
  4. Step 4: Simplify right side
    7,844.25x = 84,498,508.38
  5. Step 5: Solve for x
    x = 84,498,508.38/7,844.25
  6. Step 6: Final answer
    x = 10,772.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.