Home / 12,441.66-17,057.38-12,220.54

Finding the Fourth Proportional to 12,441.66, 17,057.38 and 12,220.54

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Solution

The fourth proportional to 12,441.66, 17,057.38 and 12,220.54 is: 16,754.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,441.66 : 17,057.38 = 12,220.54 : x
  2. Step 2: Convert to fraction form
    12,441.66/17,057.38 = 12,220.54/x
  3. Step 3: Cross multiply
    12,441.66x = 17,057.38 × 12,220.54
  4. Step 4: Simplify right side
    12,441.66x = 208,450,394.59
  5. Step 5: Solve for x
    x = 208,450,394.59/12,441.66
  6. Step 6: Final answer
    x = 16,754.23

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Half scale
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Double scale
Find fourth proportional to 12,442.66, 17,058.75 and 12,221.54
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.