Home / 11,612.68-17,419.18-2,847.80

Finding the Fourth Proportional to 11,612.68, 17,419.18 and 2,847.80

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Solution

The fourth proportional to 11,612.68, 17,419.18 and 2,847.80 is: 4,271.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,612.68 : 17,419.18 = 2,847.80 : x
  2. Step 2: Convert to fraction form
    11,612.68/17,419.18 = 2,847.80/x
  3. Step 3: Cross multiply
    11,612.68x = 17,419.18 × 2,847.80
  4. Step 4: Simplify right side
    11,612.68x = 49,606,340.80
  5. Step 5: Solve for x
    x = 49,606,340.80/11,612.68
  6. Step 6: Final answer
    x = 4,271.74

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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.