Home / 11,701.97-16,148.71-6,396.78

Finding the Fourth Proportional to 11,701.97, 16,148.71 and 6,396.78

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Solution

The fourth proportional to 11,701.97, 16,148.71 and 6,396.78 is: 8,827.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,701.97 : 16,148.71 = 6,396.78 : x
  2. Step 2: Convert to fraction form
    11,701.97/16,148.71 = 6,396.78/x
  3. Step 3: Cross multiply
    11,701.97x = 16,148.71 × 6,396.78
  4. Step 4: Simplify right side
    11,701.97x = 103,299,745.15
  5. Step 5: Solve for x
    x = 103,299,745.15/11,701.97
  6. Step 6: Final answer
    x = 8,827.55

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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.