Home / 18,519.60-25,550.68-10,556.08

Finding the Fourth Proportional to 18,519.60, 25,550.68 and 10,556.08

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Solution

The fourth proportional to 18,519.60, 25,550.68 and 10,556.08 is: 14,563.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,519.60 : 25,550.68 = 10,556.08 : x
  2. Step 2: Convert to fraction form
    18,519.60/25,550.68 = 10,556.08/x
  3. Step 3: Cross multiply
    18,519.60x = 25,550.68 × 10,556.08
  4. Step 4: Simplify right side
    18,519.60x = 269,715,022.13
  5. Step 5: Solve for x
    x = 269,715,022.13/18,519.60
  6. Step 6: Final answer
    x = 14,563.76

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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.