Home / 19,189.91-28,793.21-6,718.88

Finding the Fourth Proportional to 19,189.91, 28,793.21 and 6,718.88

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Solution

The fourth proportional to 19,189.91, 28,793.21 and 6,718.88 is: 10,081.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,189.91 : 28,793.21 = 6,718.88 : x
  2. Step 2: Convert to fraction form
    19,189.91/28,793.21 = 6,718.88/x
  3. Step 3: Cross multiply
    19,189.91x = 28,793.21 × 6,718.88
  4. Step 4: Simplify right side
    19,189.91x = 193,457,945.24
  5. Step 5: Solve for x
    x = 193,457,945.24/19,189.91
  6. Step 6: Final answer
    x = 10,081.24

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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.