Home / 11,109.12-16,672.44-5,182.98

Finding the Fourth Proportional to 11,109.12, 16,672.44 and 5,182.98

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Solution

The fourth proportional to 11,109.12, 16,672.44 and 5,182.98 is: 7,778.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,109.12 : 16,672.44 = 5,182.98 : x
  2. Step 2: Convert to fraction form
    11,109.12/16,672.44 = 5,182.98/x
  3. Step 3: Cross multiply
    11,109.12x = 16,672.44 × 5,182.98
  4. Step 4: Simplify right side
    11,109.12x = 86,412,923.07
  5. Step 5: Solve for x
    x = 86,412,923.07/11,109.12
  6. Step 6: Final answer
    x = 7,778.56

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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.