Home / 18,519.37-25,556.62-10,561.42

Finding the Fourth Proportional to 18,519.37, 25,556.62 and 10,561.42

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Solution

The fourth proportional to 18,519.37, 25,556.62 and 10,561.42 is: 14,574.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,519.37 : 25,556.62 = 10,561.42 : x
  2. Step 2: Convert to fraction form
    18,519.37/25,556.62 = 10,561.42/x
  3. Step 3: Cross multiply
    18,519.37x = 25,556.62 × 10,561.42
  4. Step 4: Simplify right side
    18,519.37x = 269,914,197.60
  5. Step 5: Solve for x
    x = 269,914,197.60/18,519.37
  6. Step 6: Final answer
    x = 14,574.70

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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.