Home / 11,781.09-16,257.69-6,403.41

Finding the Fourth Proportional to 11,781.09, 16,257.69 and 6,403.41

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Solution

The fourth proportional to 11,781.09, 16,257.69 and 6,403.41 is: 8,836.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.09 : 16,257.69 = 6,403.41 : x
  2. Step 2: Convert to fraction form
    11,781.09/16,257.69 = 6,403.41/x
  3. Step 3: Cross multiply
    11,781.09x = 16,257.69 × 6,403.41
  4. Step 4: Simplify right side
    11,781.09x = 104,104,654.72
  5. Step 5: Solve for x
    x = 104,104,654.72/11,781.09
  6. Step 6: Final answer
    x = 8,836.59

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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.