Home / 18,519.54-25,556.77-10,021.48

Finding the Fourth Proportional to 18,519.54, 25,556.77 and 10,021.48

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Solution

The fourth proportional to 18,519.54, 25,556.77 and 10,021.48 is: 13,829.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,519.54 : 25,556.77 = 10,021.48 : x
  2. Step 2: Convert to fraction form
    18,519.54/25,556.77 = 10,021.48/x
  3. Step 3: Cross multiply
    18,519.54x = 25,556.77 × 10,021.48
  4. Step 4: Simplify right side
    18,519.54x = 256,116,620.58
  5. Step 5: Solve for x
    x = 256,116,620.58/18,519.54
  6. Step 6: Final answer
    x = 13,829.53

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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.