Home / 12,628.25-18,942.47-5,606.38

Finding the Fourth Proportional to 12,628.25, 18,942.47 and 5,606.38

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Solution

The fourth proportional to 12,628.25, 18,942.47 and 5,606.38 is: 8,409.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,628.25 : 18,942.47 = 5,606.38 : x
  2. Step 2: Convert to fraction form
    12,628.25/18,942.47 = 5,606.38/x
  3. Step 3: Cross multiply
    12,628.25x = 18,942.47 × 5,606.38
  4. Step 4: Simplify right side
    12,628.25x = 106,198,629.60
  5. Step 5: Solve for x
    x = 106,198,629.60/12,628.25
  6. Step 6: Final answer
    x = 8,409.60

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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.