Home / 12,422.52-18,636.36-3,656.64

Finding the Fourth Proportional to 12,422.52, 18,636.36 and 3,656.64

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Solution

The fourth proportional to 12,422.52, 18,636.36 and 3,656.64 is: 5,485.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,422.52 : 18,636.36 = 3,656.64 : x
  2. Step 2: Convert to fraction form
    12,422.52/18,636.36 = 3,656.64/x
  3. Step 3: Cross multiply
    12,422.52x = 18,636.36 × 3,656.64
  4. Step 4: Simplify right side
    12,422.52x = 68,146,459.43
  5. Step 5: Solve for x
    x = 68,146,459.43/12,422.52
  6. Step 6: Final answer
    x = 5,485.72

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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.