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Finding the Fourth Proportional to 8,482.82, 12,724.23 and 2,638.27

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Solution

The fourth proportional to 8,482.82, 12,724.23 and 2,638.27 is: 3,957.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,482.82 : 12,724.23 = 2,638.27 : x
  2. Step 2: Convert to fraction form
    8,482.82/12,724.23 = 2,638.27/x
  3. Step 3: Cross multiply
    8,482.82x = 12,724.23 × 2,638.27
  4. Step 4: Simplify right side
    8,482.82x = 33,569,890.66
  5. Step 5: Solve for x
    x = 33,569,890.66/8,482.82
  6. Step 6: Final answer
    x = 3,957.40

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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.