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Finding the Fourth Proportional to 8,326.53, 12,479.37 and 4,167.72

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Solution

The fourth proportional to 8,326.53, 12,479.37 and 4,167.72 is: 6,246.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,326.53 : 12,479.37 = 4,167.72 : x
  2. Step 2: Convert to fraction form
    8,326.53/12,479.37 = 4,167.72/x
  3. Step 3: Cross multiply
    8,326.53x = 12,479.37 × 4,167.72
  4. Step 4: Simplify right side
    8,326.53x = 52,010,519.94
  5. Step 5: Solve for x
    x = 52,010,519.94/8,326.53
  6. Step 6: Final answer
    x = 6,246.36

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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.