Home / 10,519.58-15,775.26-3,942.18

Finding the Fourth Proportional to 10,519.58, 15,775.26 and 3,942.18

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Solution

The fourth proportional to 10,519.58, 15,775.26 and 3,942.18 is: 5,911.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,519.58 : 15,775.26 = 3,942.18 : x
  2. Step 2: Convert to fraction form
    10,519.58/15,775.26 = 3,942.18/x
  3. Step 3: Cross multiply
    10,519.58x = 15,775.26 × 3,942.18
  4. Step 4: Simplify right side
    10,519.58x = 62,188,914.47
  5. Step 5: Solve for x
    x = 62,188,914.47/10,519.58
  6. Step 6: Final answer
    x = 5,911.73

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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.