Home / 18,892.23-28,313.70-7,787.73

Finding the Fourth Proportional to 18,892.23, 28,313.70 and 7,787.73

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Solution

The fourth proportional to 18,892.23, 28,313.70 and 7,787.73 is: 11,671.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,892.23 : 28,313.70 = 7,787.73 : x
  2. Step 2: Convert to fraction form
    18,892.23/28,313.70 = 7,787.73/x
  3. Step 3: Cross multiply
    18,892.23x = 28,313.70 × 7,787.73
  4. Step 4: Simplify right side
    18,892.23x = 220,499,450.90
  5. Step 5: Solve for x
    x = 220,499,450.90/18,892.23
  6. Step 6: Final answer
    x = 11,671.44

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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.