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Finding the Fourth Proportional to 8,647.95, 11,933.73 and 4,871.73

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Solution

The fourth proportional to 8,647.95, 11,933.73 and 4,871.73 is: 6,722.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,647.95 : 11,933.73 = 4,871.73 : x
  2. Step 2: Convert to fraction form
    8,647.95/11,933.73 = 4,871.73/x
  3. Step 3: Cross multiply
    8,647.95x = 11,933.73 × 4,871.73
  4. Step 4: Simplify right side
    8,647.95x = 58,137,910.45
  5. Step 5: Solve for x
    x = 58,137,910.45/8,647.95
  6. Step 6: Final answer
    x = 6,722.74

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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.