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Finding the Fourth Proportional to 11,187.75, 16,784.07 and 4,262.25

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Solution

The fourth proportional to 11,187.75, 16,784.07 and 4,262.25 is: 6,394.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.75 : 16,784.07 = 4,262.25 : x
  2. Step 2: Convert to fraction form
    11,187.75/16,784.07 = 4,262.25/x
  3. Step 3: Cross multiply
    11,187.75x = 16,784.07 × 4,262.25
  4. Step 4: Simplify right side
    11,187.75x = 71,537,902.36
  5. Step 5: Solve for x
    x = 71,537,902.36/11,187.75
  6. Step 6: Final answer
    x = 6,394.31

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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.