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Finding the Fourth Proportional to 8,254.79, 12,379.58 and 2,706.90

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Solution

The fourth proportional to 8,254.79, 12,379.58 and 2,706.90 is: 4,059.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,254.79 : 12,379.58 = 2,706.90 : x
  2. Step 2: Convert to fraction form
    8,254.79/12,379.58 = 2,706.90/x
  3. Step 3: Cross multiply
    8,254.79x = 12,379.58 × 2,706.90
  4. Step 4: Simplify right side
    8,254.79x = 33,510,285.10
  5. Step 5: Solve for x
    x = 33,510,285.10/8,254.79
  6. Step 6: Final answer
    x = 4,059.50

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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.