Home / 11,568.78-17,355.60-3,778.20

Finding the Fourth Proportional to 11,568.78, 17,355.60 and 3,778.20

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Solution

The fourth proportional to 11,568.78, 17,355.60 and 3,778.20 is: 5,668.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,568.78 : 17,355.60 = 3,778.20 : x
  2. Step 2: Convert to fraction form
    11,568.78/17,355.60 = 3,778.20/x
  3. Step 3: Cross multiply
    11,568.78x = 17,355.60 × 3,778.20
  4. Step 4: Simplify right side
    11,568.78x = 65,572,927.92
  5. Step 5: Solve for x
    x = 65,572,927.92/11,568.78
  6. Step 6: Final answer
    x = 5,668.09

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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.