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Finding the Fourth Proportional to 8,891.83, 13,338.06 and 6,815.62

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Solution

The fourth proportional to 8,891.83, 13,338.06 and 6,815.62 is: 10,223.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,891.83 : 13,338.06 = 6,815.62 : x
  2. Step 2: Convert to fraction form
    8,891.83/13,338.06 = 6,815.62/x
  3. Step 3: Cross multiply
    8,891.83x = 13,338.06 × 6,815.62
  4. Step 4: Simplify right side
    8,891.83x = 90,907,148.50
  5. Step 5: Solve for x
    x = 90,907,148.50/8,891.83
  6. Step 6: Final answer
    x = 10,223.67

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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.