Home / 11,579.64-15,979.88-6,274.44

Finding the Fourth Proportional to 11,579.64, 15,979.88 and 6,274.44

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Solution

The fourth proportional to 11,579.64, 15,979.88 and 6,274.44 is: 8,658.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,579.64 : 15,979.88 = 6,274.44 : x
  2. Step 2: Convert to fraction form
    11,579.64/15,979.88 = 6,274.44/x
  3. Step 3: Cross multiply
    11,579.64x = 15,979.88 × 6,274.44
  4. Step 4: Simplify right side
    11,579.64x = 100,264,798.27
  5. Step 5: Solve for x
    x = 100,264,798.27/11,579.64
  6. Step 6: Final answer
    x = 8,658.71

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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.