Home / 13,824.13-19,062.21-9,340.09

Finding the Fourth Proportional to 13,824.13, 19,062.21 and 9,340.09

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Solution

The fourth proportional to 13,824.13, 19,062.21 and 9,340.09 is: 12,879.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824.13 : 19,062.21 = 9,340.09 : x
  2. Step 2: Convert to fraction form
    13,824.13/19,062.21 = 9,340.09/x
  3. Step 3: Cross multiply
    13,824.13x = 19,062.21 × 9,340.09
  4. Step 4: Simplify right side
    13,824.13x = 178,042,661.69
  5. Step 5: Solve for x
    x = 178,042,661.69/13,824.13
  6. Step 6: Final answer
    x = 12,879.13

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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.