Home / 12,709.62-19,059.36-3,942.18

Finding the Fourth Proportional to 12,709.62, 19,059.36 and 3,942.18

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Solution

The fourth proportional to 12,709.62, 19,059.36 and 3,942.18 is: 5,911.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,709.62 : 19,059.36 = 3,942.18 : x
  2. Step 2: Convert to fraction form
    12,709.62/19,059.36 = 3,942.18/x
  3. Step 3: Cross multiply
    12,709.62x = 19,059.36 × 3,942.18
  4. Step 4: Simplify right side
    12,709.62x = 75,135,427.80
  5. Step 5: Solve for x
    x = 75,135,427.80/12,709.62
  6. Step 6: Final answer
    x = 5,911.70

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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.