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Finding the Fourth Proportional to 18,511.52, 27,743.44 and 6,810.88

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Solution

The fourth proportional to 18,511.52, 27,743.44 and 6,810.88 is: 10,207.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,511.52 : 27,743.44 = 6,810.88 : x
  2. Step 2: Convert to fraction form
    18,511.52/27,743.44 = 6,810.88/x
  3. Step 3: Cross multiply
    18,511.52x = 27,743.44 × 6,810.88
  4. Step 4: Simplify right side
    18,511.52x = 188,957,240.63
  5. Step 5: Solve for x
    x = 188,957,240.63/18,511.52
  6. Step 6: Final answer
    x = 10,207.55

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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.