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Finding the Fourth Proportional to 11,383.74, 17,001.90 and 11,309.22

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Solution

The fourth proportional to 11,383.74, 17,001.90 and 11,309.22 is: 16,890.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,383.74 : 17,001.90 = 11,309.22 : x
  2. Step 2: Convert to fraction form
    11,383.74/17,001.90 = 11,309.22/x
  3. Step 3: Cross multiply
    11,383.74x = 17,001.90 × 11,309.22
  4. Step 4: Simplify right side
    11,383.74x = 192,278,227.52
  5. Step 5: Solve for x
    x = 192,278,227.52/11,383.74
  6. Step 6: Final answer
    x = 16,890.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.