Home / 12,422.23-18,627.48-3,655.40

Finding the Fourth Proportional to 12,422.23, 18,627.48 and 3,655.40

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Solution

The fourth proportional to 12,422.23, 18,627.48 and 3,655.40 is: 5,481.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,422.23 : 18,627.48 = 3,655.40 : x
  2. Step 2: Convert to fraction form
    12,422.23/18,627.48 = 3,655.40/x
  3. Step 3: Cross multiply
    12,422.23x = 18,627.48 × 3,655.40
  4. Step 4: Simplify right side
    12,422.23x = 68,090,797.25
  5. Step 5: Solve for x
    x = 68,090,797.25/12,422.23
  6. Step 6: Final answer
    x = 5,481.37

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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.