Home / 19,189.62-28,780.20-8,093.46

Finding the Fourth Proportional to 19,189.62, 28,780.20 and 8,093.46

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Solution

The fourth proportional to 19,189.62, 28,780.20 and 8,093.46 is: 12,138.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,189.62 : 28,780.20 = 8,093.46 : x
  2. Step 2: Convert to fraction form
    19,189.62/28,780.20 = 8,093.46/x
  3. Step 3: Cross multiply
    19,189.62x = 28,780.20 × 8,093.46
  4. Step 4: Simplify right side
    19,189.62x = 232,931,397.49
  5. Step 5: Solve for x
    x = 232,931,397.49/19,189.62
  6. Step 6: Final answer
    x = 12,138.41

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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.