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Finding the Fourth Proportional to 11,860.50, 17,790.21 and 3,095.22

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Solution

The fourth proportional to 11,860.50, 17,790.21 and 3,095.22 is: 4,642.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,860.50 : 17,790.21 = 3,095.22 : x
  2. Step 2: Convert to fraction form
    11,860.50/17,790.21 = 3,095.22/x
  3. Step 3: Cross multiply
    11,860.50x = 17,790.21 × 3,095.22
  4. Step 4: Simplify right side
    11,860.50x = 55,064,613.80
  5. Step 5: Solve for x
    x = 55,064,613.80/11,860.50
  6. Step 6: Final answer
    x = 4,642.69

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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.