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Finding the Fourth Proportional to 8,326.65, 12,489.98 and 4,627.11

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Solution

The fourth proportional to 8,326.65, 12,489.98 and 4,627.11 is: 6,940.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,326.65 : 12,489.98 = 4,627.11 : x
  2. Step 2: Convert to fraction form
    8,326.65/12,489.98 = 4,627.11/x
  3. Step 3: Cross multiply
    8,326.65x = 12,489.98 × 4,627.11
  4. Step 4: Simplify right side
    8,326.65x = 57,792,511.36
  5. Step 5: Solve for x
    x = 57,792,511.36/8,326.65
  6. Step 6: Final answer
    x = 6,940.67

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Similar ratio
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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.