Home / 11,579.20-15,979.30-6,274.02

Finding the Fourth Proportional to 11,579.20, 15,979.30 and 6,274.02

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Solution

The fourth proportional to 11,579.20, 15,979.30 and 6,274.02 is: 8,658.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,579.20 : 15,979.30 = 6,274.02 : x
  2. Step 2: Convert to fraction form
    11,579.20/15,979.30 = 6,274.02/x
  3. Step 3: Cross multiply
    11,579.20x = 15,979.30 × 6,274.02
  4. Step 4: Simplify right side
    11,579.20x = 100,254,469.78
  5. Step 5: Solve for x
    x = 100,254,469.78/11,579.20
  6. Step 6: Final answer
    x = 8,658.15

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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.