Home / 11,579.65-15,979.91-6,274.47

Finding the Fourth Proportional to 11,579.65, 15,979.91 and 6,274.47

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Solution

The fourth proportional to 11,579.65, 15,979.91 and 6,274.47 is: 8,658.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,579.65 : 15,979.91 = 6,274.47 : x
  2. Step 2: Convert to fraction form
    11,579.65/15,979.91 = 6,274.47/x
  3. Step 3: Cross multiply
    11,579.65x = 15,979.91 × 6,274.47
  4. Step 4: Simplify right side
    11,579.65x = 100,265,433.45
  5. Step 5: Solve for x
    x = 100,265,433.45/11,579.65
  6. Step 6: Final answer
    x = 8,658.76

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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.