Home / 13,020.20-19,533.62-3,786.20

Finding the Fourth Proportional to 13,020.20, 19,533.62 and 3,786.20

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Solution

The fourth proportional to 13,020.20, 19,533.62 and 3,786.20 is: 5,680.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020.20 : 19,533.62 = 3,786.20 : x
  2. Step 2: Convert to fraction form
    13,020.20/19,533.62 = 3,786.20/x
  3. Step 3: Cross multiply
    13,020.20x = 19,533.62 × 3,786.20
  4. Step 4: Simplify right side
    13,020.20x = 73,958,075.44
  5. Step 5: Solve for x
    x = 73,958,075.44/13,020.20
  6. Step 6: Final answer
    x = 5,680.26

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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.