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Finding the Fourth Proportional to 11,783.26, 16,261.86 and 6,749.11

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Solution

The fourth proportional to 11,783.26, 16,261.86 and 6,749.11 is: 9,314.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,783.26 : 16,261.86 = 6,749.11 : x
  2. Step 2: Convert to fraction form
    11,783.26/16,261.86 = 6,749.11/x
  3. Step 3: Cross multiply
    11,783.26x = 16,261.86 × 6,749.11
  4. Step 4: Simplify right side
    11,783.26x = 109,753,081.94
  5. Step 5: Solve for x
    x = 109,753,081.94/11,783.26
  6. Step 6: Final answer
    x = 9,314.32

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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.