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Finding the Fourth Proportional to 8,576.65, 12,858.89 and 3,307.19

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Solution

The fourth proportional to 8,576.65, 12,858.89 and 3,307.19 is: 4,958.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,576.65 : 12,858.89 = 3,307.19 : x
  2. Step 2: Convert to fraction form
    8,576.65/12,858.89 = 3,307.19/x
  3. Step 3: Cross multiply
    8,576.65x = 12,858.89 × 3,307.19
  4. Step 4: Simplify right side
    8,576.65x = 42,526,792.42
  5. Step 5: Solve for x
    x = 42,526,792.42/8,576.65
  6. Step 6: Final answer
    x = 4,958.44

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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.