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Finding the Fourth Proportional to 18,957, 28,452.42 and 9,958.44

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Solution

The fourth proportional to 18,957, 28,452.42 and 9,958.44 is: 14,946.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,957 : 28,452.42 = 9,958.44 : x
  2. Step 2: Convert to fraction form
    18,957/28,452.42 = 9,958.44/x
  3. Step 3: Cross multiply
    18,957x = 28,452.42 × 9,958.44
  4. Step 4: Simplify right side
    18,957x = 283,341,717.42
  5. Step 5: Solve for x
    x = 283,341,717.42/18,957
  6. Step 6: Final answer
    x = 14,946.55

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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.