Home / 18,914.91-28,376.58-5,768.31

Finding the Fourth Proportional to 18,914.91, 28,376.58 and 5,768.31

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Solution

The fourth proportional to 18,914.91, 28,376.58 and 5,768.31 is: 8,653.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,914.91 : 28,376.58 = 5,768.31 : x
  2. Step 2: Convert to fraction form
    18,914.91/28,376.58 = 5,768.31/x
  3. Step 3: Cross multiply
    18,914.91x = 28,376.58 × 5,768.31
  4. Step 4: Simplify right side
    18,914.91x = 163,684,910.18
  5. Step 5: Solve for x
    x = 163,684,910.18/18,914.91
  6. Step 6: Final answer
    x = 8,653.75

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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.