Home / 10,876.75-16,315.13-2,668.75

Finding the Fourth Proportional to 10,876.75, 16,315.13 and 2,668.75

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Solution

The fourth proportional to 10,876.75, 16,315.13 and 2,668.75 is: 4,003.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,876.75 : 16,315.13 = 2,668.75 : x
  2. Step 2: Convert to fraction form
    10,876.75/16,315.13 = 2,668.75/x
  3. Step 3: Cross multiply
    10,876.75x = 16,315.13 × 2,668.75
  4. Step 4: Simplify right side
    10,876.75x = 43,541,003.19
  5. Step 5: Solve for x
    x = 43,541,003.19/10,876.75
  6. Step 6: Final answer
    x = 4,003.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.