Home / 11,923.20-17,890.94-4,908.40

Finding the Fourth Proportional to 11,923.20, 17,890.94 and 4,908.40

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Solution

The fourth proportional to 11,923.20, 17,890.94 and 4,908.40 is: 7,365.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,923.20 : 17,890.94 = 4,908.40 : x
  2. Step 2: Convert to fraction form
    11,923.20/17,890.94 = 4,908.40/x
  3. Step 3: Cross multiply
    11,923.20x = 17,890.94 × 4,908.40
  4. Step 4: Simplify right side
    11,923.20x = 87,815,857.44
  5. Step 5: Solve for x
    x = 87,815,857.44/11,923.20
  6. Step 6: Final answer
    x = 7,365.12

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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.