Home / 11,949.30-16,491.30-7,474.48

Finding the Fourth Proportional to 11,949.30, 16,491.30 and 7,474.48

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Solution

The fourth proportional to 11,949.30, 16,491.30 and 7,474.48 is: 10,315.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,949.30 : 16,491.30 = 7,474.48 : x
  2. Step 2: Convert to fraction form
    11,949.30/16,491.30 = 7,474.48/x
  3. Step 3: Cross multiply
    11,949.30x = 16,491.30 × 7,474.48
  4. Step 4: Simplify right side
    11,949.30x = 123,263,822.77
  5. Step 5: Solve for x
    x = 123,263,822.77/11,949.30
  6. Step 6: Final answer
    x = 10,315.57

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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.