Home / 12,190.20-16,822.26-6,885.24

Finding the Fourth Proportional to 12,190.20, 16,822.26 and 6,885.24

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Solution

The fourth proportional to 12,190.20, 16,822.26 and 6,885.24 is: 9,501.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,190.20 : 16,822.26 = 6,885.24 : x
  2. Step 2: Convert to fraction form
    12,190.20/16,822.26 = 6,885.24/x
  3. Step 3: Cross multiply
    12,190.20x = 16,822.26 × 6,885.24
  4. Step 4: Simplify right side
    12,190.20x = 115,825,297.44
  5. Step 5: Solve for x
    x = 115,825,297.44/12,190.20
  6. Step 6: Final answer
    x = 9,501.51

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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.