Home / 11,923.20-17,870.40-6,076.80

Finding the Fourth Proportional to 11,923.20, 17,870.40 and 6,076.80

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Solution

The fourth proportional to 11,923.20, 17,870.40 and 6,076.80 is: 9,107.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,923.20 : 17,870.40 = 6,076.80 : x
  2. Step 2: Convert to fraction form
    11,923.20/17,870.40 = 6,076.80/x
  3. Step 3: Cross multiply
    11,923.20x = 17,870.40 × 6,076.80
  4. Step 4: Simplify right side
    11,923.20x = 108,594,846.72
  5. Step 5: Solve for x
    x = 108,594,846.72/11,923.20
  6. Step 6: Final answer
    x = 9,107.86

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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.