Home / 10,926.72-16,391.16-3,136.68

Finding the Fourth Proportional to 10,926.72, 16,391.16 and 3,136.68

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Solution

The fourth proportional to 10,926.72, 16,391.16 and 3,136.68 is: 4,705.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,926.72 : 16,391.16 = 3,136.68 : x
  2. Step 2: Convert to fraction form
    10,926.72/16,391.16 = 3,136.68/x
  3. Step 3: Cross multiply
    10,926.72x = 16,391.16 × 3,136.68
  4. Step 4: Simplify right side
    10,926.72x = 51,413,823.75
  5. Step 5: Solve for x
    x = 51,413,823.75/10,926.72
  6. Step 6: Final answer
    x = 4,705.33

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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.