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Finding the Fourth Proportional to 8,425.80, 11,627.19 and 4,888.44

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Solution

The fourth proportional to 8,425.80, 11,627.19 and 4,888.44 is: 6,745.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,425.80 : 11,627.19 = 4,888.44 : x
  2. Step 2: Convert to fraction form
    8,425.80/11,627.19 = 4,888.44/x
  3. Step 3: Cross multiply
    8,425.80x = 11,627.19 × 4,888.44
  4. Step 4: Simplify right side
    8,425.80x = 56,838,820.68
  5. Step 5: Solve for x
    x = 56,838,820.68/8,425.80
  6. Step 6: Final answer
    x = 6,745.81

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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.