Home / 13,191.99-19,786.26-3,330.66

Finding the Fourth Proportional to 13,191.99, 19,786.26 and 3,330.66

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Solution

The fourth proportional to 13,191.99, 19,786.26 and 3,330.66 is: 4,995.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191.99 : 19,786.26 = 3,330.66 : x
  2. Step 2: Convert to fraction form
    13,191.99/19,786.26 = 3,330.66/x
  3. Step 3: Cross multiply
    13,191.99x = 19,786.26 × 3,330.66
  4. Step 4: Simplify right side
    13,191.99x = 65,901,304.73
  5. Step 5: Solve for x
    x = 65,901,304.73/13,191.99
  6. Step 6: Final answer
    x = 4,995.55

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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.