Home / 12,629.56-18,947.08-4,838.38

Finding the Fourth Proportional to 12,629.56, 18,947.08 and 4,838.38

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Solution

The fourth proportional to 12,629.56, 18,947.08 and 4,838.38 is: 7,258.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,629.56 : 18,947.08 = 4,838.38 : x
  2. Step 2: Convert to fraction form
    12,629.56/18,947.08 = 4,838.38/x
  3. Step 3: Cross multiply
    12,629.56x = 18,947.08 × 4,838.38
  4. Step 4: Simplify right side
    12,629.56x = 91,673,172.93
  5. Step 5: Solve for x
    x = 91,673,172.93/12,629.56
  6. Step 6: Final answer
    x = 7,258.62

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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.