Home / 13,576.03-18,734.89-8,270.84

Finding the Fourth Proportional to 13,576.03, 18,734.89 and 8,270.84

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Solution

The fourth proportional to 13,576.03, 18,734.89 and 8,270.84 is: 11,413.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576.03 : 18,734.89 = 8,270.84 : x
  2. Step 2: Convert to fraction form
    13,576.03/18,734.89 = 8,270.84/x
  3. Step 3: Cross multiply
    13,576.03x = 18,734.89 × 8,270.84
  4. Step 4: Simplify right side
    13,576.03x = 154,953,324.44
  5. Step 5: Solve for x
    x = 154,953,324.44/13,576.03
  6. Step 6: Final answer
    x = 11,413.75

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1.5x scale

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.