Home / 11,949.99-16,491.63-6,644.76

Finding the Fourth Proportional to 11,949.99, 16,491.63 and 6,644.76

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Solution

The fourth proportional to 11,949.99, 16,491.63 and 6,644.76 is: 9,170.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,949.99 : 16,491.63 = 6,644.76 : x
  2. Step 2: Convert to fraction form
    11,949.99/16,491.63 = 6,644.76/x
  3. Step 3: Cross multiply
    11,949.99x = 16,491.63 × 6,644.76
  4. Step 4: Simplify right side
    11,949.99x = 109,582,923.36
  5. Step 5: Solve for x
    x = 109,582,923.36/11,949.99
  6. Step 6: Final answer
    x = 9,170.13

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Double scale
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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.