Home / 18,910.44-28,366.96-6,425.36

Finding the Fourth Proportional to 18,910.44, 28,366.96 and 6,425.36

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Solution

The fourth proportional to 18,910.44, 28,366.96 and 6,425.36 is: 9,638.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,910.44 : 28,366.96 = 6,425.36 : x
  2. Step 2: Convert to fraction form
    18,910.44/28,366.96 = 6,425.36/x
  3. Step 3: Cross multiply
    18,910.44x = 28,366.96 × 6,425.36
  4. Step 4: Simplify right side
    18,910.44x = 182,267,930.11
  5. Step 5: Solve for x
    x = 182,267,930.11/18,910.44
  6. Step 6: Final answer
    x = 9,638.48

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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.