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Finding the Fourth Proportional to 8,205.79, 12,307.48 and 2,659.62

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Solution

The fourth proportional to 8,205.79, 12,307.48 and 2,659.62 is: 3,989.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,205.79 : 12,307.48 = 2,659.62 : x
  2. Step 2: Convert to fraction form
    8,205.79/12,307.48 = 2,659.62/x
  3. Step 3: Cross multiply
    8,205.79x = 12,307.48 × 2,659.62
  4. Step 4: Simplify right side
    8,205.79x = 32,733,219.96
  5. Step 5: Solve for x
    x = 32,733,219.96/8,205.79
  6. Step 6: Final answer
    x = 3,989.04

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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.