Home / 18,556.32-27,838.60-5,409.68

Finding the Fourth Proportional to 18,556.32, 27,838.60 and 5,409.68

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Solution

The fourth proportional to 18,556.32, 27,838.60 and 5,409.68 is: 8,115.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,556.32 : 27,838.60 = 5,409.68 : x
  2. Step 2: Convert to fraction form
    18,556.32/27,838.60 = 5,409.68/x
  3. Step 3: Cross multiply
    18,556.32x = 27,838.60 × 5,409.68
  4. Step 4: Simplify right side
    18,556.32x = 150,597,917.65
  5. Step 5: Solve for x
    x = 150,597,917.65/18,556.32
  6. Step 6: Final answer
    x = 8,115.72

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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.