Home / 11,121.84-16,683.78-4,101.57

Finding the Fourth Proportional to 11,121.84, 16,683.78 and 4,101.57

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Solution

The fourth proportional to 11,121.84, 16,683.78 and 4,101.57 is: 6,152.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.84 : 16,683.78 = 4,101.57 : x
  2. Step 2: Convert to fraction form
    11,121.84/16,683.78 = 4,101.57/x
  3. Step 3: Cross multiply
    11,121.84x = 16,683.78 × 4,101.57
  4. Step 4: Simplify right side
    11,121.84x = 68,429,691.53
  5. Step 5: Solve for x
    x = 68,429,691.53/11,121.84
  6. Step 6: Final answer
    x = 6,152.73

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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.