Home / 13,620.73-18,795.75-7,570.60

Finding the Fourth Proportional to 13,620.73, 18,795.75 and 7,570.60

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Solution

The fourth proportional to 13,620.73, 18,795.75 and 7,570.60 is: 10,446.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,620.73 : 18,795.75 = 7,570.60 : x
  2. Step 2: Convert to fraction form
    13,620.73/18,795.75 = 7,570.60/x
  3. Step 3: Cross multiply
    13,620.73x = 18,795.75 × 7,570.60
  4. Step 4: Simplify right side
    13,620.73x = 142,295,104.95
  5. Step 5: Solve for x
    x = 142,295,104.95/13,620.73
  6. Step 6: Final answer
    x = 10,446.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.