Home / 13,299.70-19,952.48-3,940.45

Finding the Fourth Proportional to 13,299.70, 19,952.48 and 3,940.45

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Solution

The fourth proportional to 13,299.70, 19,952.48 and 3,940.45 is: 5,911.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.70 : 19,952.48 = 3,940.45 : x
  2. Step 2: Convert to fraction form
    13,299.70/19,952.48 = 3,940.45/x
  3. Step 3: Cross multiply
    13,299.70x = 19,952.48 × 3,940.45
  4. Step 4: Simplify right side
    13,299.70x = 78,621,749.82
  5. Step 5: Solve for x
    x = 78,621,749.82/13,299.70
  6. Step 6: Final answer
    x = 5,911.54

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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.