Home / 12,816.24-17,660.16-9,453.73

Finding the Fourth Proportional to 12,816.24, 17,660.16 and 9,453.73

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Solution

The fourth proportional to 12,816.24, 17,660.16 and 9,453.73 is: 13,026.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,816.24 : 17,660.16 = 9,453.73 : x
  2. Step 2: Convert to fraction form
    12,816.24/17,660.16 = 9,453.73/x
  3. Step 3: Cross multiply
    12,816.24x = 17,660.16 × 9,453.73
  4. Step 4: Simplify right side
    12,816.24x = 166,954,296.10
  5. Step 5: Solve for x
    x = 166,954,296.10/12,816.24
  6. Step 6: Final answer
    x = 13,026.78

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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.