Home / 12,422.68-18,627.60-3,656.45

Finding the Fourth Proportional to 12,422.68, 18,627.60 and 3,656.45

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Solution

The fourth proportional to 12,422.68, 18,627.60 and 3,656.45 is: 5,482.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,422.68 : 18,627.60 = 3,656.45 : x
  2. Step 2: Convert to fraction form
    12,422.68/18,627.60 = 3,656.45/x
  3. Step 3: Cross multiply
    12,422.68x = 18,627.60 × 3,656.45
  4. Step 4: Simplify right side
    12,422.68x = 68,110,888.02
  5. Step 5: Solve for x
    x = 68,110,888.02/12,422.68
  6. Step 6: Final answer
    x = 5,482.79

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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.