Home / 11,781.32-16,259.12-6,747.12

Finding the Fourth Proportional to 11,781.32, 16,259.12 and 6,747.12

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Solution

The fourth proportional to 11,781.32, 16,259.12 and 6,747.12 is: 9,311.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.32 : 16,259.12 = 6,747.12 : x
  2. Step 2: Convert to fraction form
    11,781.32/16,259.12 = 6,747.12/x
  3. Step 3: Cross multiply
    11,781.32x = 16,259.12 × 6,747.12
  4. Step 4: Simplify right side
    11,781.32x = 109,702,233.73
  5. Step 5: Solve for x
    x = 109,702,233.73/11,781.32
  6. Step 6: Final answer
    x = 9,311.54

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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.