Home / 11,517.12-15,892.32-6,480.96

Finding the Fourth Proportional to 11,517.12, 15,892.32 and 6,480.96

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Solution

The fourth proportional to 11,517.12, 15,892.32 and 6,480.96 is: 8,942.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,517.12 : 15,892.32 = 6,480.96 : x
  2. Step 2: Convert to fraction form
    11,517.12/15,892.32 = 6,480.96/x
  3. Step 3: Cross multiply
    11,517.12x = 15,892.32 × 6,480.96
  4. Step 4: Simplify right side
    11,517.12x = 102,997,490.23
  5. Step 5: Solve for x
    x = 102,997,490.23/11,517.12
  6. Step 6: Final answer
    x = 8,942.99

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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.