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Finding the Fourth Proportional to 8,468.30, 11,679.03 and 6,696.83

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Solution

The fourth proportional to 8,468.30, 11,679.03 and 6,696.83 is: 9,235.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,468.30 : 11,679.03 = 6,696.83 : x
  2. Step 2: Convert to fraction form
    8,468.30/11,679.03 = 6,696.83/x
  3. Step 3: Cross multiply
    8,468.30x = 11,679.03 × 6,696.83
  4. Step 4: Simplify right side
    8,468.30x = 78,212,420.08
  5. Step 5: Solve for x
    x = 78,212,420.08/8,468.30
  6. Step 6: Final answer
    x = 9,235.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.