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Finding the Fourth Proportional to 8,502.15, 12,754.75 and 2,953.86

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Solution

The fourth proportional to 8,502.15, 12,754.75 and 2,953.86 is: 4,431.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,502.15 : 12,754.75 = 2,953.86 : x
  2. Step 2: Convert to fraction form
    8,502.15/12,754.75 = 2,953.86/x
  3. Step 3: Cross multiply
    8,502.15x = 12,754.75 × 2,953.86
  4. Step 4: Simplify right side
    8,502.15x = 37,675,745.84
  5. Step 5: Solve for x
    x = 37,675,745.84/8,502.15
  6. Step 6: Final answer
    x = 4,431.32

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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.