Home / 18,388.78-27,585.75-7,296.60

Finding the Fourth Proportional to 18,388.78, 27,585.75 and 7,296.60

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Solution

The fourth proportional to 18,388.78, 27,585.75 and 7,296.60 is: 10,945.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,388.78 : 27,585.75 = 7,296.60 : x
  2. Step 2: Convert to fraction form
    18,388.78/27,585.75 = 7,296.60/x
  3. Step 3: Cross multiply
    18,388.78x = 27,585.75 × 7,296.60
  4. Step 4: Simplify right side
    18,388.78x = 201,282,183.45
  5. Step 5: Solve for x
    x = 201,282,183.45/18,388.78
  6. Step 6: Final answer
    x = 10,945.92

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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.