Home / 11,579.70-15,979.86-6,274.20

Finding the Fourth Proportional to 11,579.70, 15,979.86 and 6,274.20

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Solution

The fourth proportional to 11,579.70, 15,979.86 and 6,274.20 is: 8,658.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,579.70 : 15,979.86 = 6,274.20 : x
  2. Step 2: Convert to fraction form
    11,579.70/15,979.86 = 6,274.20/x
  3. Step 3: Cross multiply
    11,579.70x = 15,979.86 × 6,274.20
  4. Step 4: Simplify right side
    11,579.70x = 100,260,837.61
  5. Step 5: Solve for x
    x = 100,260,837.61/11,579.70
  6. Step 6: Final answer
    x = 8,658.33

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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.