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Finding the Fourth Proportional to 8,577.07, 12,865.11 and 3,311.05

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Solution

The fourth proportional to 8,577.07, 12,865.11 and 3,311.05 is: 4,966.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,577.07 : 12,865.11 = 3,311.05 : x
  2. Step 2: Convert to fraction form
    8,577.07/12,865.11 = 3,311.05/x
  3. Step 3: Cross multiply
    8,577.07x = 12,865.11 × 3,311.05
  4. Step 4: Simplify right side
    8,577.07x = 42,597,022.47
  5. Step 5: Solve for x
    x = 42,597,022.47/8,577.07
  6. Step 6: Final answer
    x = 4,966.38

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Similar ratio
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1.5x scale

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.