Home / 11,964.80-16,511.64-6,660.02

Finding the Fourth Proportional to 11,964.80, 16,511.64 and 6,660.02

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Solution

The fourth proportional to 11,964.80, 16,511.64 and 6,660.02 is: 9,190.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,964.80 : 16,511.64 = 6,660.02 : x
  2. Step 2: Convert to fraction form
    11,964.80/16,511.64 = 6,660.02/x
  3. Step 3: Cross multiply
    11,964.80x = 16,511.64 × 6,660.02
  4. Step 4: Simplify right side
    11,964.80x = 109,967,852.63
  5. Step 5: Solve for x
    x = 109,967,852.63/11,964.80
  6. Step 6: Final answer
    x = 9,190.95

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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.