Home / 11,579.75-15,979.62-6,274.45

Finding the Fourth Proportional to 11,579.75, 15,979.62 and 6,274.45

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Solution

The fourth proportional to 11,579.75, 15,979.62 and 6,274.45 is: 8,658.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,579.75 : 15,979.62 = 6,274.45 : x
  2. Step 2: Convert to fraction form
    11,579.75/15,979.62 = 6,274.45/x
  3. Step 3: Cross multiply
    11,579.75x = 15,979.62 × 6,274.45
  4. Step 4: Simplify right side
    11,579.75x = 100,263,343.33
  5. Step 5: Solve for x
    x = 100,263,343.33/11,579.75
  6. Step 6: Final answer
    x = 8,658.51

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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.