Home / 11,718.69-16,172.22-6,682.10

Finding the Fourth Proportional to 11,718.69, 16,172.22 and 6,682.10

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Solution

The fourth proportional to 11,718.69, 16,172.22 and 6,682.10 is: 9,221.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,718.69 : 16,172.22 = 6,682.10 : x
  2. Step 2: Convert to fraction form
    11,718.69/16,172.22 = 6,682.10/x
  3. Step 3: Cross multiply
    11,718.69x = 16,172.22 × 6,682.10
  4. Step 4: Simplify right side
    11,718.69x = 108,064,391.26
  5. Step 5: Solve for x
    x = 108,064,391.26/11,718.69
  6. Step 6: Final answer
    x = 9,221.54

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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.