Home / 11,718.92-16,172.82-6,684.11

Finding the Fourth Proportional to 11,718.92, 16,172.82 and 6,684.11

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Solution

The fourth proportional to 11,718.92, 16,172.82 and 6,684.11 is: 9,224.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,718.92 : 16,172.82 = 6,684.11 : x
  2. Step 2: Convert to fraction form
    11,718.92/16,172.82 = 6,684.11/x
  3. Step 3: Cross multiply
    11,718.92x = 16,172.82 × 6,684.11
  4. Step 4: Simplify right side
    11,718.92x = 108,100,907.89
  5. Step 5: Solve for x
    x = 108,100,907.89/11,718.92
  6. Step 6: Final answer
    x = 9,224.48

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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.