Home / 8,528.78-12,793.63-2,685.85

Finding the Fourth Proportional to 8,528.78, 12,793.63 and 2,685.85

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Solution

The fourth proportional to 8,528.78, 12,793.63 and 2,685.85 is: 4,028.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,528.78 : 12,793.63 = 2,685.85 : x
  2. Step 2: Convert to fraction form
    8,528.78/12,793.63 = 2,685.85/x
  3. Step 3: Cross multiply
    8,528.78x = 12,793.63 × 2,685.85
  4. Step 4: Simplify right side
    8,528.78x = 34,361,771.14
  5. Step 5: Solve for x
    x = 34,361,771.14/8,528.78
  6. Step 6: Final answer
    x = 4,028.92

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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.