Home / 11,121.53-16,688.88-4,106.44

Finding the Fourth Proportional to 11,121.53, 16,688.88 and 4,106.44

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Solution

The fourth proportional to 11,121.53, 16,688.88 and 4,106.44 is: 6,162.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.53 : 16,688.88 = 4,106.44 : x
  2. Step 2: Convert to fraction form
    11,121.53/16,688.88 = 4,106.44/x
  3. Step 3: Cross multiply
    11,121.53x = 16,688.88 × 4,106.44
  4. Step 4: Simplify right side
    11,121.53x = 68,531,800.94
  5. Step 5: Solve for x
    x = 68,531,800.94/11,121.53
  6. Step 6: Final answer
    x = 6,162.08

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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.