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Finding the Fourth Proportional to 6,447.33, 8,839.37 and 6,330.69

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Solution

The fourth proportional to 6,447.33, 8,839.37 and 6,330.69 is: 8,679.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,447.33 : 8,839.37 = 6,330.69 : x
  2. Step 2: Convert to fraction form
    6,447.33/8,839.37 = 6,330.69/x
  3. Step 3: Cross multiply
    6,447.33x = 8,839.37 × 6,330.69
  4. Step 4: Simplify right side
    6,447.33x = 55,959,327.09
  5. Step 5: Solve for x
    x = 55,959,327.09/6,447.33
  6. Step 6: Final answer
    x = 8,679.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.