Home / 18,930.54-28,388.25-9,062.58

Finding the Fourth Proportional to 18,930.54, 28,388.25 and 9,062.58

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Solution

The fourth proportional to 18,930.54, 28,388.25 and 9,062.58 is: 13,590.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,930.54 : 28,388.25 = 9,062.58 : x
  2. Step 2: Convert to fraction form
    18,930.54/28,388.25 = 9,062.58/x
  3. Step 3: Cross multiply
    18,930.54x = 28,388.25 × 9,062.58
  4. Step 4: Simplify right side
    18,930.54x = 257,270,786.69
  5. Step 5: Solve for x
    x = 257,270,786.69/18,930.54
  6. Step 6: Final answer
    x = 13,590.25

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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.