Home / 13,619.74-18,794.22-7,650.25

Finding the Fourth Proportional to 13,619.74, 18,794.22 and 7,650.25

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Solution

The fourth proportional to 13,619.74, 18,794.22 and 7,650.25 is: 10,556.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.74 : 18,794.22 = 7,650.25 : x
  2. Step 2: Convert to fraction form
    13,619.74/18,794.22 = 7,650.25/x
  3. Step 3: Cross multiply
    13,619.74x = 18,794.22 × 7,650.25
  4. Step 4: Simplify right side
    13,619.74x = 143,780,481.56
  5. Step 5: Solve for x
    x = 143,780,481.56/13,619.74
  6. Step 6: Final answer
    x = 10,556.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.