Home / 19,936.86-29,866.98-11,145.12

Finding the Fourth Proportional to 19,936.86, 29,866.98 and 11,145.12

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Solution

The fourth proportional to 19,936.86, 29,866.98 and 11,145.12 is: 16,696.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,936.86 : 29,866.98 = 11,145.12 : x
  2. Step 2: Convert to fraction form
    19,936.86/29,866.98 = 11,145.12/x
  3. Step 3: Cross multiply
    19,936.86x = 29,866.98 × 11,145.12
  4. Step 4: Simplify right side
    19,936.86x = 332,871,076.14
  5. Step 5: Solve for x
    x = 332,871,076.14/19,936.86
  6. Step 6: Final answer
    x = 16,696.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.