Home / 11,521.98-17,183.75-11,314.62

Finding the Fourth Proportional to 11,521.98, 17,183.75 and 11,314.62

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Solution

The fourth proportional to 11,521.98, 17,183.75 and 11,314.62 is: 16,874.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,521.98 : 17,183.75 = 11,314.62 : x
  2. Step 2: Convert to fraction form
    11,521.98/17,183.75 = 11,314.62/x
  3. Step 3: Cross multiply
    11,521.98x = 17,183.75 × 11,314.62
  4. Step 4: Simplify right side
    11,521.98x = 194,427,544.85
  5. Step 5: Solve for x
    x = 194,427,544.85/11,521.98
  6. Step 6: Final answer
    x = 16,874.49

Related Problems

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Half scale
Find fourth proportional to 23,043.96, 34,367.49 and 22,629.24
Double scale
Find fourth proportional to 11,522.98, 17,185.24 and 11,315.62
Similar ratio
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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.