Home / 12,628.41-18,942.74-8,273.58

Finding the Fourth Proportional to 12,628.41, 18,942.74 and 8,273.58

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Solution

The fourth proportional to 12,628.41, 18,942.74 and 8,273.58 is: 12,410.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,628.41 : 18,942.74 = 8,273.58 : x
  2. Step 2: Convert to fraction form
    12,628.41/18,942.74 = 8,273.58/x
  3. Step 3: Cross multiply
    12,628.41x = 18,942.74 × 8,273.58
  4. Step 4: Simplify right side
    12,628.41x = 156,724,274.81
  5. Step 5: Solve for x
    x = 156,724,274.81/12,628.41
  6. Step 6: Final answer
    x = 12,410.45

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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.