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Finding the Fourth Proportional to 8,651.96, 12,977.94 and 2,411.72

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Solution

The fourth proportional to 8,651.96, 12,977.94 and 2,411.72 is: 3,617.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,651.96 : 12,977.94 = 2,411.72 : x
  2. Step 2: Convert to fraction form
    8,651.96/12,977.94 = 2,411.72/x
  3. Step 3: Cross multiply
    8,651.96x = 12,977.94 × 2,411.72
  4. Step 4: Simplify right side
    8,651.96x = 31,299,157.46
  5. Step 5: Solve for x
    x = 31,299,157.46/8,651.96
  6. Step 6: Final answer
    x = 3,617.58

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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.