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Finding the Fourth Proportional to 11,287.09, 16,930.46 and 3,079.09

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Solution

The fourth proportional to 11,287.09, 16,930.46 and 3,079.09 is: 4,618.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,287.09 : 16,930.46 = 3,079.09 : x
  2. Step 2: Convert to fraction form
    11,287.09/16,930.46 = 3,079.09/x
  3. Step 3: Cross multiply
    11,287.09x = 16,930.46 × 3,079.09
  4. Step 4: Simplify right side
    11,287.09x = 52,130,394.69
  5. Step 5: Solve for x
    x = 52,130,394.69/11,287.09
  6. Step 6: Final answer
    x = 4,618.59

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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.