Home / 13,621.23-18,796.44-7,571.10

Finding the Fourth Proportional to 13,621.23, 18,796.44 and 7,571.10

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Solution

The fourth proportional to 13,621.23, 18,796.44 and 7,571.10 is: 10,447.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621.23 : 18,796.44 = 7,571.10 : x
  2. Step 2: Convert to fraction form
    13,621.23/18,796.44 = 7,571.10/x
  3. Step 3: Cross multiply
    13,621.23x = 18,796.44 × 7,571.10
  4. Step 4: Simplify right side
    13,621.23x = 142,309,726.88
  5. Step 5: Solve for x
    x = 142,309,726.88/13,621.23
  6. Step 6: Final answer
    x = 10,447.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.