Home / 11,979.20-16,530.24-6,674.24

Finding the Fourth Proportional to 11,979.20, 16,530.24 and 6,674.24

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Solution

The fourth proportional to 11,979.20, 16,530.24 and 6,674.24 is: 9,209.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.20 : 16,530.24 = 6,674.24 : x
  2. Step 2: Convert to fraction form
    11,979.20/16,530.24 = 6,674.24/x
  3. Step 3: Cross multiply
    11,979.20x = 16,530.24 × 6,674.24
  4. Step 4: Simplify right side
    11,979.20x = 110,326,789.02
  5. Step 5: Solve for x
    x = 110,326,789.02/11,979.20
  6. Step 6: Final answer
    x = 9,209.86

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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.