Home / 19,105.09-28,644.56-9,726.96

Finding the Fourth Proportional to 19,105.09, 28,644.56 and 9,726.96

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Solution

The fourth proportional to 19,105.09, 28,644.56 and 9,726.96 is: 14,583.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,105.09 : 28,644.56 = 9,726.96 : x
  2. Step 2: Convert to fraction form
    19,105.09/28,644.56 = 9,726.96/x
  3. Step 3: Cross multiply
    19,105.09x = 28,644.56 × 9,726.96
  4. Step 4: Simplify right side
    19,105.09x = 278,624,297.48
  5. Step 5: Solve for x
    x = 278,624,297.48/19,105.09
  6. Step 6: Final answer
    x = 14,583.78

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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.