Home / 11,579.75-15,979.95-6,274.56

Finding the Fourth Proportional to 11,579.75, 15,979.95 and 6,274.56

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Solution

The fourth proportional to 11,579.75, 15,979.95 and 6,274.56 is: 8,658.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,579.75 : 15,979.95 = 6,274.56 : x
  2. Step 2: Convert to fraction form
    11,579.75/15,979.95 = 6,274.56/x
  3. Step 3: Cross multiply
    11,579.75x = 15,979.95 × 6,274.56
  4. Step 4: Simplify right side
    11,579.75x = 100,267,155.07
  5. Step 5: Solve for x
    x = 100,267,155.07/11,579.75
  6. Step 6: Final answer
    x = 8,658.83

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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.