Home / 12,912.66-19,365.79-3,552.22

Finding the Fourth Proportional to 12,912.66, 19,365.79 and 3,552.22

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Solution

The fourth proportional to 12,912.66, 19,365.79 and 3,552.22 is: 5,327.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,912.66 : 19,365.79 = 3,552.22 : x
  2. Step 2: Convert to fraction form
    12,912.66/19,365.79 = 3,552.22/x
  3. Step 3: Cross multiply
    12,912.66x = 19,365.79 × 3,552.22
  4. Step 4: Simplify right side
    12,912.66x = 68,791,546.55
  5. Step 5: Solve for x
    x = 68,791,546.55/12,912.66
  6. Step 6: Final answer
    x = 5,327.45

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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.