Home / 11,966.88-17,979.52-11,303.76

Finding the Fourth Proportional to 11,966.88, 17,979.52 and 11,303.76

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Solution

The fourth proportional to 11,966.88, 17,979.52 and 11,303.76 is: 16,983.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,966.88 : 17,979.52 = 11,303.76 : x
  2. Step 2: Convert to fraction form
    11,966.88/17,979.52 = 11,303.76/x
  3. Step 3: Cross multiply
    11,966.88x = 17,979.52 × 11,303.76
  4. Step 4: Simplify right side
    11,966.88x = 203,236,179.00
  5. Step 5: Solve for x
    x = 203,236,179.00/11,966.88
  6. Step 6: Final answer
    x = 16,983.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.