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Finding the Fourth Proportional to 18,390.40, 27,592.80 and 6,704.80

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Solution

The fourth proportional to 18,390.40, 27,592.80 and 6,704.80 is: 10,059.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,390.40 : 27,592.80 = 6,704.80 : x
  2. Step 2: Convert to fraction form
    18,390.40/27,592.80 = 6,704.80/x
  3. Step 3: Cross multiply
    18,390.40x = 27,592.80 × 6,704.80
  4. Step 4: Simplify right side
    18,390.40x = 185,004,205.44
  5. Step 5: Solve for x
    x = 185,004,205.44/18,390.40
  6. Step 6: Final answer
    x = 10,059.82

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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.