Home / 19,286.39-28,933.20-8,757.14

Finding the Fourth Proportional to 19,286.39, 28,933.20 and 8,757.14

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Solution

The fourth proportional to 19,286.39, 28,933.20 and 8,757.14 is: 13,137.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,286.39 : 28,933.20 = 8,757.14 : x
  2. Step 2: Convert to fraction form
    19,286.39/28,933.20 = 8,757.14/x
  3. Step 3: Cross multiply
    19,286.39x = 28,933.20 × 8,757.14
  4. Step 4: Simplify right side
    19,286.39x = 253,371,938.38
  5. Step 5: Solve for x
    x = 253,371,938.38/19,286.39
  6. Step 6: Final answer
    x = 13,137.34

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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.