Home / 11,259.78-16,889.67-2,939.73

Finding the Fourth Proportional to 11,259.78, 16,889.67 and 2,939.73

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Solution

The fourth proportional to 11,259.78, 16,889.67 and 2,939.73 is: 4,409.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,259.78 : 16,889.67 = 2,939.73 : x
  2. Step 2: Convert to fraction form
    11,259.78/16,889.67 = 2,939.73/x
  3. Step 3: Cross multiply
    11,259.78x = 16,889.67 × 2,939.73
  4. Step 4: Simplify right side
    11,259.78x = 49,651,069.59
  5. Step 5: Solve for x
    x = 49,651,069.59/11,259.78
  6. Step 6: Final answer
    x = 4,409.60

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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.