Home / 8,439.58-12,663.94-3,512.62

Finding the Fourth Proportional to 8,439.58, 12,663.94 and 3,512.62

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Solution

The fourth proportional to 8,439.58, 12,663.94 and 3,512.62 is: 5,270.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.58 : 12,663.94 = 3,512.62 : x
  2. Step 2: Convert to fraction form
    8,439.58/12,663.94 = 3,512.62/x
  3. Step 3: Cross multiply
    8,439.58x = 12,663.94 × 3,512.62
  4. Step 4: Simplify right side
    8,439.58x = 44,483,608.92
  5. Step 5: Solve for x
    x = 44,483,608.92/8,439.58
  6. Step 6: Final answer
    x = 5,270.83

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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.