Home / 11,976.48-17,859.21-11,145.42

Finding the Fourth Proportional to 11,976.48, 17,859.21 and 11,145.42

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Solution

The fourth proportional to 11,976.48, 17,859.21 and 11,145.42 is: 16,619.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,976.48 : 17,859.21 = 11,145.42 : x
  2. Step 2: Convert to fraction form
    11,976.48/17,859.21 = 11,145.42/x
  3. Step 3: Cross multiply
    11,976.48x = 17,859.21 × 11,145.42
  4. Step 4: Simplify right side
    11,976.48x = 199,048,396.32
  5. Step 5: Solve for x
    x = 199,048,396.32/11,976.48
  6. Step 6: Final answer
    x = 16,619.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.