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Finding the Fourth Proportional to 8,235.54, 12,354.48 and 2,687.13

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Solution

The fourth proportional to 8,235.54, 12,354.48 and 2,687.13 is: 4,031.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,235.54 : 12,354.48 = 2,687.13 : x
  2. Step 2: Convert to fraction form
    8,235.54/12,354.48 = 2,687.13/x
  3. Step 3: Cross multiply
    8,235.54x = 12,354.48 × 2,687.13
  4. Step 4: Simplify right side
    8,235.54x = 33,198,093.84
  5. Step 5: Solve for x
    x = 33,198,093.84/8,235.54
  6. Step 6: Final answer
    x = 4,031.08

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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.