Home / 13,191.37-19,786.97-3,330.60

Finding the Fourth Proportional to 13,191.37, 19,786.97 and 3,330.60

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Solution

The fourth proportional to 13,191.37, 19,786.97 and 3,330.60 is: 4,995.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191.37 : 19,786.97 = 3,330.60 : x
  2. Step 2: Convert to fraction form
    13,191.37/19,786.97 = 3,330.60/x
  3. Step 3: Cross multiply
    13,191.37x = 19,786.97 × 3,330.60
  4. Step 4: Simplify right side
    13,191.37x = 65,902,482.28
  5. Step 5: Solve for x
    x = 65,902,482.28/13,191.37
  6. Step 6: Final answer
    x = 4,995.88

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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.