Home / 12,556.38-18,843.48-5,538.18

Finding the Fourth Proportional to 12,556.38, 18,843.48 and 5,538.18

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Solution

The fourth proportional to 12,556.38, 18,843.48 and 5,538.18 is: 8,311.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.38 : 18,843.48 = 5,538.18 : x
  2. Step 2: Convert to fraction form
    12,556.38/18,843.48 = 5,538.18/x
  3. Step 3: Cross multiply
    12,556.38x = 18,843.48 × 5,538.18
  4. Step 4: Simplify right side
    12,556.38x = 104,358,584.07
  5. Step 5: Solve for x
    x = 104,358,584.07/12,556.38
  6. Step 6: Final answer
    x = 8,311.20

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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.