Home / 12,200.96-18,202.88-10,365.44

Finding the Fourth Proportional to 12,200.96, 18,202.88 and 10,365.44

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Solution

The fourth proportional to 12,200.96, 18,202.88 and 10,365.44 is: 15,464.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,200.96 : 18,202.88 = 10,365.44 : x
  2. Step 2: Convert to fraction form
    12,200.96/18,202.88 = 10,365.44/x
  3. Step 3: Cross multiply
    12,200.96x = 18,202.88 × 10,365.44
  4. Step 4: Simplify right side
    12,200.96x = 188,680,860.47
  5. Step 5: Solve for x
    x = 188,680,860.47/12,200.96
  6. Step 6: Final answer
    x = 15,464.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.