Home / 8,106.94-11,190.61-6,310.86

Finding the Fourth Proportional to 8,106.94, 11,190.61 and 6,310.86

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Solution

The fourth proportional to 8,106.94, 11,190.61 and 6,310.86 is: 8,711.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.94 : 11,190.61 = 6,310.86 : x
  2. Step 2: Convert to fraction form
    8,106.94/11,190.61 = 6,310.86/x
  3. Step 3: Cross multiply
    8,106.94x = 11,190.61 × 6,310.86
  4. Step 4: Simplify right side
    8,106.94x = 70,622,366.40
  5. Step 5: Solve for x
    x = 70,622,366.40/8,106.94
  6. Step 6: Final answer
    x = 8,711.35

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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.