Home / 18,259.44-27,379.38-12,422.64

Finding the Fourth Proportional to 18,259.44, 27,379.38 and 12,422.64

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Solution

The fourth proportional to 18,259.44, 27,379.38 and 12,422.64 is: 18,627.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,259.44 : 27,379.38 = 12,422.64 : x
  2. Step 2: Convert to fraction form
    18,259.44/27,379.38 = 12,422.64/x
  3. Step 3: Cross multiply
    18,259.44x = 27,379.38 × 12,422.64
  4. Step 4: Simplify right side
    18,259.44x = 340,124,181.16
  5. Step 5: Solve for x
    x = 340,124,181.16/18,259.44
  6. Step 6: Final answer
    x = 18,627.31

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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.