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Finding the Fourth Proportional to 8,525.66, 12,780.96 and 3,327.90

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Solution

The fourth proportional to 8,525.66, 12,780.96 and 3,327.90 is: 4,988.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,525.66 : 12,780.96 = 3,327.90 : x
  2. Step 2: Convert to fraction form
    8,525.66/12,780.96 = 3,327.90/x
  3. Step 3: Cross multiply
    8,525.66x = 12,780.96 × 3,327.90
  4. Step 4: Simplify right side
    8,525.66x = 42,533,756.78
  5. Step 5: Solve for x
    x = 42,533,756.78/8,525.66
  6. Step 6: Final answer
    x = 4,988.91

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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.