Home / 11,179.92-15,428.43-6,144.69

Finding the Fourth Proportional to 11,179.92, 15,428.43 and 6,144.69

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Solution

The fourth proportional to 11,179.92, 15,428.43 and 6,144.69 is: 8,479.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,179.92 : 15,428.43 = 6,144.69 : x
  2. Step 2: Convert to fraction form
    11,179.92/15,428.43 = 6,144.69/x
  3. Step 3: Cross multiply
    11,179.92x = 15,428.43 × 6,144.69
  4. Step 4: Simplify right side
    11,179.92x = 94,802,919.54
  5. Step 5: Solve for x
    x = 94,802,919.54/11,179.92
  6. Step 6: Final answer
    x = 8,479.75

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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.