Home / 11,781.08-16,257.78-6,475.56

Finding the Fourth Proportional to 11,781.08, 16,257.78 and 6,475.56

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Solution

The fourth proportional to 11,781.08, 16,257.78 and 6,475.56 is: 8,936.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.08 : 16,257.78 = 6,475.56 : x
  2. Step 2: Convert to fraction form
    11,781.08/16,257.78 = 6,475.56/x
  3. Step 3: Cross multiply
    11,781.08x = 16,257.78 × 6,475.56
  4. Step 4: Simplify right side
    11,781.08x = 105,278,229.86
  5. Step 5: Solve for x
    x = 105,278,229.86/11,781.08
  6. Step 6: Final answer
    x = 8,936.21

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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.