Home / 11,728.72-17,583.36-4,331.80

Finding the Fourth Proportional to 11,728.72, 17,583.36 and 4,331.80

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Solution

The fourth proportional to 11,728.72, 17,583.36 and 4,331.80 is: 6,494.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,728.72 : 17,583.36 = 4,331.80 : x
  2. Step 2: Convert to fraction form
    11,728.72/17,583.36 = 4,331.80/x
  3. Step 3: Cross multiply
    11,728.72x = 17,583.36 × 4,331.80
  4. Step 4: Simplify right side
    11,728.72x = 76,167,598.85
  5. Step 5: Solve for x
    x = 76,167,598.85/11,728.72
  6. Step 6: Final answer
    x = 6,494.11

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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.