Home / 13,144.20-19,694.70-12,366.60

Finding the Fourth Proportional to 13,144.20, 19,694.70 and 12,366.60

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Solution

The fourth proportional to 13,144.20, 19,694.70 and 12,366.60 is: 18,529.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,144.20 : 19,694.70 = 12,366.60 : x
  2. Step 2: Convert to fraction form
    13,144.20/19,694.70 = 12,366.60/x
  3. Step 3: Cross multiply
    13,144.20x = 19,694.70 × 12,366.60
  4. Step 4: Simplify right side
    13,144.20x = 243,556,477.02
  5. Step 5: Solve for x
    x = 243,556,477.02/13,144.20
  6. Step 6: Final answer
    x = 18,529.58

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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.