Home / 18,977.49-28,469.95-7,289.73

Finding the Fourth Proportional to 18,977.49, 28,469.95 and 7,289.73

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Solution

The fourth proportional to 18,977.49, 28,469.95 and 7,289.73 is: 10,936.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,977.49 : 28,469.95 = 7,289.73 : x
  2. Step 2: Convert to fraction form
    18,977.49/28,469.95 = 7,289.73/x
  3. Step 3: Cross multiply
    18,977.49x = 28,469.95 × 7,289.73
  4. Step 4: Simplify right side
    18,977.49x = 207,538,230.39
  5. Step 5: Solve for x
    x = 207,538,230.39/18,977.49
  6. Step 6: Final answer
    x = 10,936.02

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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.