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Finding the Fourth Proportional to 11,843.52, 17,765.27 and 3,078.20

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Solution

The fourth proportional to 11,843.52, 17,765.27 and 3,078.20 is: 4,617.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,843.52 : 17,765.27 = 3,078.20 : x
  2. Step 2: Convert to fraction form
    11,843.52/17,765.27 = 3,078.20/x
  3. Step 3: Cross multiply
    11,843.52x = 17,765.27 × 3,078.20
  4. Step 4: Simplify right side
    11,843.52x = 54,685,111.99
  5. Step 5: Solve for x
    x = 54,685,111.99/11,843.52
  6. Step 6: Final answer
    x = 4,617.30

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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.