Home / 11,964.87-16,511.49-6,659.55

Finding the Fourth Proportional to 11,964.87, 16,511.49 and 6,659.55

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Solution

The fourth proportional to 11,964.87, 16,511.49 and 6,659.55 is: 9,190.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,964.87 : 16,511.49 = 6,659.55 : x
  2. Step 2: Convert to fraction form
    11,964.87/16,511.49 = 6,659.55/x
  3. Step 3: Cross multiply
    11,964.87x = 16,511.49 × 6,659.55
  4. Step 4: Simplify right side
    11,964.87x = 109,959,093.23
  5. Step 5: Solve for x
    x = 109,959,093.23/11,964.87
  6. Step 6: Final answer
    x = 9,190.16

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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.