Home / 13,204.72-18,222.46-7,236.38

Finding the Fourth Proportional to 13,204.72, 18,222.46 and 7,236.38

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Solution

The fourth proportional to 13,204.72, 18,222.46 and 7,236.38 is: 9,986.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,204.72 : 18,222.46 = 7,236.38 : x
  2. Step 2: Convert to fraction form
    13,204.72/18,222.46 = 7,236.38/x
  3. Step 3: Cross multiply
    13,204.72x = 18,222.46 × 7,236.38
  4. Step 4: Simplify right side
    13,204.72x = 131,864,645.09
  5. Step 5: Solve for x
    x = 131,864,645.09/13,204.72
  6. Step 6: Final answer
    x = 9,986.18

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Half scale
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Double scale
Find fourth proportional to 13,205.72, 18,223.84 and 7,237.38
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.