Home / 11,173.89-16,762.65-3,778.80

Finding the Fourth Proportional to 11,173.89, 16,762.65 and 3,778.80

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Solution

The fourth proportional to 11,173.89, 16,762.65 and 3,778.80 is: 5,668.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,173.89 : 16,762.65 = 3,778.80 : x
  2. Step 2: Convert to fraction form
    11,173.89/16,762.65 = 3,778.80/x
  3. Step 3: Cross multiply
    11,173.89x = 16,762.65 × 3,778.80
  4. Step 4: Simplify right side
    11,173.89x = 63,342,701.82
  5. Step 5: Solve for x
    x = 63,342,701.82/11,173.89
  6. Step 6: Final answer
    x = 5,668.81

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1.5x scale

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.