Home / 11,181.78-16,770.68-4,160.16

Finding the Fourth Proportional to 11,181.78, 16,770.68 and 4,160.16

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Solution

The fourth proportional to 11,181.78, 16,770.68 and 4,160.16 is: 6,239.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,181.78 : 16,770.68 = 4,160.16 : x
  2. Step 2: Convert to fraction form
    11,181.78/16,770.68 = 4,160.16/x
  3. Step 3: Cross multiply
    11,181.78x = 16,770.68 × 4,160.16
  4. Step 4: Simplify right side
    11,181.78x = 69,768,706.91
  5. Step 5: Solve for x
    x = 69,768,706.91/11,181.78
  6. Step 6: Final answer
    x = 6,239.50

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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.