Home / 19,096.20-28,644.30-7,999.92

Finding the Fourth Proportional to 19,096.20, 28,644.30 and 7,999.92

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Solution

The fourth proportional to 19,096.20, 28,644.30 and 7,999.92 is: 11,999.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,096.20 : 28,644.30 = 7,999.92 : x
  2. Step 2: Convert to fraction form
    19,096.20/28,644.30 = 7,999.92/x
  3. Step 3: Cross multiply
    19,096.20x = 28,644.30 × 7,999.92
  4. Step 4: Simplify right side
    19,096.20x = 229,152,108.46
  5. Step 5: Solve for x
    x = 229,152,108.46/19,096.20
  6. Step 6: Final answer
    x = 11,999.88

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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.