Home / 19,190.32-28,806.44-13,187.00

Finding the Fourth Proportional to 19,190.32, 28,806.44 and 13,187.00

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Solution

The fourth proportional to 19,190.32, 28,806.44 and 13,187.00 is: 19,794.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,190.32 : 28,806.44 = 13,187.00 : x
  2. Step 2: Convert to fraction form
    19,190.32/28,806.44 = 13,187.00/x
  3. Step 3: Cross multiply
    19,190.32x = 28,806.44 × 13,187.00
  4. Step 4: Simplify right side
    19,190.32x = 379,870,530.36
  5. Step 5: Solve for x
    x = 379,870,530.36/19,190.32
  6. Step 6: Final answer
    x = 19,794.91

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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.