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Finding the Fourth Proportional to 19,114.68, 28,672.02 and 11,229.24

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Solution

The fourth proportional to 19,114.68, 28,672.02 and 11,229.24 is: 16,843.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,114.68 : 28,672.02 = 11,229.24 : x
  2. Step 2: Convert to fraction form
    19,114.68/28,672.02 = 11,229.24/x
  3. Step 3: Cross multiply
    19,114.68x = 28,672.02 × 11,229.24
  4. Step 4: Simplify right side
    19,114.68x = 321,964,993.86
  5. Step 5: Solve for x
    x = 321,964,993.86/19,114.68
  6. Step 6: Final answer
    x = 16,843.86

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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.