Home / 13,843.41-20,762.91-3,980.45

Finding the Fourth Proportional to 13,843.41, 20,762.91 and 3,980.45

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Solution

The fourth proportional to 13,843.41, 20,762.91 and 3,980.45 is: 5,970.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,843.41 : 20,762.91 = 3,980.45 : x
  2. Step 2: Convert to fraction form
    13,843.41/20,762.91 = 3,980.45/x
  3. Step 3: Cross multiply
    13,843.41x = 20,762.91 × 3,980.45
  4. Step 4: Simplify right side
    13,843.41x = 82,645,621.29
  5. Step 5: Solve for x
    x = 82,645,621.29/13,843.41
  6. Step 6: Final answer
    x = 5,970.03

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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.