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Finding the Fourth Proportional to 6,809.37, 9,393.54 and 5,911.89

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Solution

The fourth proportional to 6,809.37, 9,393.54 and 5,911.89 is: 8,155.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,809.37 : 9,393.54 = 5,911.89 : x
  2. Step 2: Convert to fraction form
    6,809.37/9,393.54 = 5,911.89/x
  3. Step 3: Cross multiply
    6,809.37x = 9,393.54 × 5,911.89
  4. Step 4: Simplify right side
    6,809.37x = 55,533,517.80
  5. Step 5: Solve for x
    x = 55,533,517.80/6,809.37
  6. Step 6: Final answer
    x = 8,155.46

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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.