Home / 8,452.25-12,678.66-2,905.54

Finding the Fourth Proportional to 8,452.25, 12,678.66 and 2,905.54

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Solution

The fourth proportional to 8,452.25, 12,678.66 and 2,905.54 is: 4,358.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,452.25 : 12,678.66 = 2,905.54 : x
  2. Step 2: Convert to fraction form
    8,452.25/12,678.66 = 2,905.54/x
  3. Step 3: Cross multiply
    8,452.25x = 12,678.66 × 2,905.54
  4. Step 4: Simplify right side
    8,452.25x = 36,838,358.73
  5. Step 5: Solve for x
    x = 36,838,358.73/8,452.25
  6. Step 6: Final answer
    x = 4,358.41

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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.