Home / 11,768.39-16,241.41-6,464.31

Finding the Fourth Proportional to 11,768.39, 16,241.41 and 6,464.31

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Solution

The fourth proportional to 11,768.39, 16,241.41 and 6,464.31 is: 8,921.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,768.39 : 16,241.41 = 6,464.31 : x
  2. Step 2: Convert to fraction form
    11,768.39/16,241.41 = 6,464.31/x
  3. Step 3: Cross multiply
    11,768.39x = 16,241.41 × 6,464.31
  4. Step 4: Simplify right side
    11,768.39x = 104,989,456.25
  5. Step 5: Solve for x
    x = 104,989,456.25/11,768.39
  6. Step 6: Final answer
    x = 8,921.31

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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.