Home / 18,968.94-28,458.90-7,873.56

Finding the Fourth Proportional to 18,968.94, 28,458.90 and 7,873.56

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Solution

The fourth proportional to 18,968.94, 28,458.90 and 7,873.56 is: 11,812.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,968.94 : 28,458.90 = 7,873.56 : x
  2. Step 2: Convert to fraction form
    18,968.94/28,458.90 = 7,873.56/x
  3. Step 3: Cross multiply
    18,968.94x = 28,458.90 × 7,873.56
  4. Step 4: Simplify right side
    18,968.94x = 224,072,856.68
  5. Step 5: Solve for x
    x = 224,072,856.68/18,968.94
  6. Step 6: Final answer
    x = 11,812.62

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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.