Home / 7,018.68-10,520.46-3,556.20

Finding the Fourth Proportional to 7,018.68, 10,520.46 and 3,556.20

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Solution

The fourth proportional to 7,018.68, 10,520.46 and 3,556.20 is: 5,330.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,018.68 : 10,520.46 = 3,556.20 : x
  2. Step 2: Convert to fraction form
    7,018.68/10,520.46 = 3,556.20/x
  3. Step 3: Cross multiply
    7,018.68x = 10,520.46 × 3,556.20
  4. Step 4: Simplify right side
    7,018.68x = 37,412,859.85
  5. Step 5: Solve for x
    x = 37,412,859.85/7,018.68
  6. Step 6: Final answer
    x = 5,330.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.