Home / 18,936.88-26,133.60-10,553.92

Finding the Fourth Proportional to 18,936.88, 26,133.60 and 10,553.92

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Solution

The fourth proportional to 18,936.88, 26,133.60 and 10,553.92 is: 14,564.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,936.88 : 26,133.60 = 10,553.92 : x
  2. Step 2: Convert to fraction form
    18,936.88/26,133.60 = 10,553.92/x
  3. Step 3: Cross multiply
    18,936.88x = 26,133.60 × 10,553.92
  4. Step 4: Simplify right side
    18,936.88x = 275,811,923.71
  5. Step 5: Solve for x
    x = 275,811,923.71/18,936.88
  6. Step 6: Final answer
    x = 14,564.80

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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.