Home / 9,183.78-13,777.44-3,918.70

Finding the Fourth Proportional to 9,183.78, 13,777.44 and 3,918.70

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Solution

The fourth proportional to 9,183.78, 13,777.44 and 3,918.70 is: 5,878.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,183.78 : 13,777.44 = 3,918.70 : x
  2. Step 2: Convert to fraction form
    9,183.78/13,777.44 = 3,918.70/x
  3. Step 3: Cross multiply
    9,183.78x = 13,777.44 × 3,918.70
  4. Step 4: Simplify right side
    9,183.78x = 53,989,654.13
  5. Step 5: Solve for x
    x = 53,989,654.13/9,183.78
  6. Step 6: Final answer
    x = 5,878.81

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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.