Home / 11,168.21-16,730.41-6,478.37

Finding the Fourth Proportional to 11,168.21, 16,730.41 and 6,478.37

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Solution

The fourth proportional to 11,168.21, 16,730.41 and 6,478.37 is: 9,704.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,168.21 : 16,730.41 = 6,478.37 : x
  2. Step 2: Convert to fraction form
    11,168.21/16,730.41 = 6,478.37/x
  3. Step 3: Cross multiply
    11,168.21x = 16,730.41 × 6,478.37
  4. Step 4: Simplify right side
    11,168.21x = 108,385,786.23
  5. Step 5: Solve for x
    x = 108,385,786.23/11,168.21
  6. Step 6: Final answer
    x = 9,704.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.