Home / 11,621.88-17,432.69-2,856.87

Finding the Fourth Proportional to 11,621.88, 17,432.69 and 2,856.87

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Solution

The fourth proportional to 11,621.88, 17,432.69 and 2,856.87 is: 4,285.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,621.88 : 17,432.69 = 2,856.87 : x
  2. Step 2: Convert to fraction form
    11,621.88/17,432.69 = 2,856.87/x
  3. Step 3: Cross multiply
    11,621.88x = 17,432.69 × 2,856.87
  4. Step 4: Simplify right side
    11,621.88x = 49,802,914.80
  5. Step 5: Solve for x
    x = 49,802,914.80/11,621.88
  6. Step 6: Final answer
    x = 4,285.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.