Home / 12,112.68-16,716-6,807.49

Finding the Fourth Proportional to 12,112.68, 16,716 and 6,807.49

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Solution

The fourth proportional to 12,112.68, 16,716 and 6,807.49 is: 9,394.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112.68 : 16,716 = 6,807.49 : x
  2. Step 2: Convert to fraction form
    12,112.68/16,716 = 6,807.49/x
  3. Step 3: Cross multiply
    12,112.68x = 16,716 × 6,807.49
  4. Step 4: Simplify right side
    12,112.68x = 113,794,002.84
  5. Step 5: Solve for x
    x = 113,794,002.84/12,112.68
  6. Step 6: Final answer
    x = 9,394.62

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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.