Home / 11,579.50-15,979.62-6,274.18

Finding the Fourth Proportional to 11,579.50, 15,979.62 and 6,274.18

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Solution

The fourth proportional to 11,579.50, 15,979.62 and 6,274.18 is: 8,658.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,579.50 : 15,979.62 = 6,274.18 : x
  2. Step 2: Convert to fraction form
    11,579.50/15,979.62 = 6,274.18/x
  3. Step 3: Cross multiply
    11,579.50x = 15,979.62 × 6,274.18
  4. Step 4: Simplify right side
    11,579.50x = 100,259,012.21
  5. Step 5: Solve for x
    x = 100,259,012.21/11,579.50
  6. Step 6: Final answer
    x = 8,658.32

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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.