Home / 13,259.75-19,889.55-3,399.03

Finding the Fourth Proportional to 13,259.75, 19,889.55 and 3,399.03

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Solution

The fourth proportional to 13,259.75, 19,889.55 and 3,399.03 is: 5,098.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,259.75 : 19,889.55 = 3,399.03 : x
  2. Step 2: Convert to fraction form
    13,259.75/19,889.55 = 3,399.03/x
  3. Step 3: Cross multiply
    13,259.75x = 19,889.55 × 3,399.03
  4. Step 4: Simplify right side
    13,259.75x = 67,605,177.14
  5. Step 5: Solve for x
    x = 67,605,177.14/13,259.75
  6. Step 6: Final answer
    x = 5,098.53

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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.