Home / 13,386.16-18,481.57-8,608.25

Finding the Fourth Proportional to 13,386.16, 18,481.57 and 8,608.25

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Solution

The fourth proportional to 13,386.16, 18,481.57 and 8,608.25 is: 11,884.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,386.16 : 18,481.57 = 8,608.25 : x
  2. Step 2: Convert to fraction form
    13,386.16/18,481.57 = 8,608.25/x
  3. Step 3: Cross multiply
    13,386.16x = 18,481.57 × 8,608.25
  4. Step 4: Simplify right side
    13,386.16x = 159,093,974.95
  5. Step 5: Solve for x
    x = 159,093,974.95/13,386.16
  6. Step 6: Final answer
    x = 11,884.96

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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.