Home / 11,189.74-16,782.24-3,290.11

Finding the Fourth Proportional to 11,189.74, 16,782.24 and 3,290.11

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Solution

The fourth proportional to 11,189.74, 16,782.24 and 3,290.11 is: 4,934.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,189.74 : 16,782.24 = 3,290.11 : x
  2. Step 2: Convert to fraction form
    11,189.74/16,782.24 = 3,290.11/x
  3. Step 3: Cross multiply
    11,189.74x = 16,782.24 × 3,290.11
  4. Step 4: Simplify right side
    11,189.74x = 55,215,415.65
  5. Step 5: Solve for x
    x = 55,215,415.65/11,189.74
  6. Step 6: Final answer
    x = 4,934.47

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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.