Home / 11,964.72-16,511.61-6,660.06

Finding the Fourth Proportional to 11,964.72, 16,511.61 and 6,660.06

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Solution

The fourth proportional to 11,964.72, 16,511.61 and 6,660.06 is: 9,191.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,964.72 : 16,511.61 = 6,660.06 : x
  2. Step 2: Convert to fraction form
    11,964.72/16,511.61 = 6,660.06/x
  3. Step 3: Cross multiply
    11,964.72x = 16,511.61 × 6,660.06
  4. Step 4: Simplify right side
    11,964.72x = 109,968,313.30
  5. Step 5: Solve for x
    x = 109,968,313.30/11,964.72
  6. Step 6: Final answer
    x = 9,191.05

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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.