Home / 19,184.43-28,780.56-8,091.12

Finding the Fourth Proportional to 19,184.43, 28,780.56 and 8,091.12

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Solution

The fourth proportional to 19,184.43, 28,780.56 and 8,091.12 is: 12,138.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,184.43 : 28,780.56 = 8,091.12 : x
  2. Step 2: Convert to fraction form
    19,184.43/28,780.56 = 8,091.12/x
  3. Step 3: Cross multiply
    19,184.43x = 28,780.56 × 8,091.12
  4. Step 4: Simplify right side
    19,184.43x = 232,866,964.63
  5. Step 5: Solve for x
    x = 232,866,964.63/19,184.43
  6. Step 6: Final answer
    x = 12,138.33

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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.