Home / 18,845.52-28,253.60-8,450

Finding the Fourth Proportional to 18,845.52, 28,253.60 and 8,450

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Solution

The fourth proportional to 18,845.52, 28,253.60 and 8,450 is: 12,668.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,845.52 : 28,253.60 = 8,450 : x
  2. Step 2: Convert to fraction form
    18,845.52/28,253.60 = 8,450/x
  3. Step 3: Cross multiply
    18,845.52x = 28,253.60 × 8,450
  4. Step 4: Simplify right side
    18,845.52x = 238,742,920
  5. Step 5: Solve for x
    x = 238,742,920/18,845.52
  6. Step 6: Final answer
    x = 12,668.42

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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.