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Finding the Fourth Proportional to 8,324.33, 12,479.15 and 4,376.79

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Solution

The fourth proportional to 8,324.33, 12,479.15 and 4,376.79 is: 6,561.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,324.33 : 12,479.15 = 4,376.79 : x
  2. Step 2: Convert to fraction form
    8,324.33/12,479.15 = 4,376.79/x
  3. Step 3: Cross multiply
    8,324.33x = 12,479.15 × 4,376.79
  4. Step 4: Simplify right side
    8,324.33x = 54,618,597.04
  5. Step 5: Solve for x
    x = 54,618,597.04/8,324.33
  6. Step 6: Final answer
    x = 6,561.32

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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.