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Finding the Fourth Proportional to 19,273.62, 28,892.88 and 7,419.83

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Solution

The fourth proportional to 19,273.62, 28,892.88 and 7,419.83 is: 11,122.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,273.62 : 28,892.88 = 7,419.83 : x
  2. Step 2: Convert to fraction form
    19,273.62/28,892.88 = 7,419.83/x
  3. Step 3: Cross multiply
    19,273.62x = 28,892.88 × 7,419.83
  4. Step 4: Simplify right side
    19,273.62x = 214,380,113.35
  5. Step 5: Solve for x
    x = 214,380,113.35/19,273.62
  6. Step 6: Final answer
    x = 11,122.98

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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.