Home / 13,120.44-19,680.30-3,259.62

Finding the Fourth Proportional to 13,120.44, 19,680.30 and 3,259.62

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Solution

The fourth proportional to 13,120.44, 19,680.30 and 3,259.62 is: 4,889.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120.44 : 19,680.30 = 3,259.62 : x
  2. Step 2: Convert to fraction form
    13,120.44/19,680.30 = 3,259.62/x
  3. Step 3: Cross multiply
    13,120.44x = 19,680.30 × 3,259.62
  4. Step 4: Simplify right side
    13,120.44x = 64,150,299.49
  5. Step 5: Solve for x
    x = 64,150,299.49/13,120.44
  6. Step 6: Final answer
    x = 4,889.34

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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.