Home / 18,289.89-27,440.37-12,963.37

Finding the Fourth Proportional to 18,289.89, 27,440.37 and 12,963.37

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Solution

The fourth proportional to 18,289.89, 27,440.37 and 12,963.37 is: 19,448.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,289.89 : 27,440.37 = 12,963.37 : x
  2. Step 2: Convert to fraction form
    18,289.89/27,440.37 = 12,963.37/x
  3. Step 3: Cross multiply
    18,289.89x = 27,440.37 × 12,963.37
  4. Step 4: Simplify right side
    18,289.89x = 355,719,604.43
  5. Step 5: Solve for x
    x = 355,719,604.43/18,289.89
  6. Step 6: Final answer
    x = 19,448.98

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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.