Home / 15,556.79-21,467.90-8,843.15

Finding the Fourth Proportional to 15,556.79, 21,467.90 and 8,843.15

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Solution

The fourth proportional to 15,556.79, 21,467.90 and 8,843.15 is: 12,203.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,556.79 : 21,467.90 = 8,843.15 : x
  2. Step 2: Convert to fraction form
    15,556.79/21,467.90 = 8,843.15/x
  3. Step 3: Cross multiply
    15,556.79x = 21,467.90 × 8,843.15
  4. Step 4: Simplify right side
    15,556.79x = 189,843,708.33
  5. Step 5: Solve for x
    x = 189,843,708.33/15,556.79
  6. Step 6: Final answer
    x = 12,203.27

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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.