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Finding the Fourth Proportional to 8,745.52, 12,063.84 and 5,209.84

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Solution

The fourth proportional to 8,745.52, 12,063.84 and 5,209.84 is: 7,186.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,745.52 : 12,063.84 = 5,209.84 : x
  2. Step 2: Convert to fraction form
    8,745.52/12,063.84 = 5,209.84/x
  3. Step 3: Cross multiply
    8,745.52x = 12,063.84 × 5,209.84
  4. Step 4: Simplify right side
    8,745.52x = 62,850,676.19
  5. Step 5: Solve for x
    x = 62,850,676.19/8,745.52
  6. Step 6: Final answer
    x = 7,186.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.