Home / 8,500.81-12,754.59-3,819.55

Finding the Fourth Proportional to 8,500.81, 12,754.59 and 3,819.55

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Solution

The fourth proportional to 8,500.81, 12,754.59 and 3,819.55 is: 5,730.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,500.81 : 12,754.59 = 3,819.55 : x
  2. Step 2: Convert to fraction form
    8,500.81/12,754.59 = 3,819.55/x
  3. Step 3: Cross multiply
    8,500.81x = 12,754.59 × 3,819.55
  4. Step 4: Simplify right side
    8,500.81x = 48,716,794.23
  5. Step 5: Solve for x
    x = 48,716,794.23/8,500.81
  6. Step 6: Final answer
    x = 5,730.84

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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.