Home / 10,791.66-16,181.01-4,220.94

Finding the Fourth Proportional to 10,791.66, 16,181.01 and 4,220.94

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Solution

The fourth proportional to 10,791.66, 16,181.01 and 4,220.94 is: 6,328.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,791.66 : 16,181.01 = 4,220.94 : x
  2. Step 2: Convert to fraction form
    10,791.66/16,181.01 = 4,220.94/x
  3. Step 3: Cross multiply
    10,791.66x = 16,181.01 × 4,220.94
  4. Step 4: Simplify right side
    10,791.66x = 68,299,072.35
  5. Step 5: Solve for x
    x = 68,299,072.35/10,791.66
  6. Step 6: Final answer
    x = 6,328.88

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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.