Home / 19,184.39-28,780.48-8,091.11

Finding the Fourth Proportional to 19,184.39, 28,780.48 and 8,091.11

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Solution

The fourth proportional to 19,184.39, 28,780.48 and 8,091.11 is: 12,138.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,184.39 : 28,780.48 = 8,091.11 : x
  2. Step 2: Convert to fraction form
    19,184.39/28,780.48 = 8,091.11/x
  3. Step 3: Cross multiply
    19,184.39x = 28,780.48 × 8,091.11
  4. Step 4: Simplify right side
    19,184.39x = 232,866,147.57
  5. Step 5: Solve for x
    x = 232,866,147.57/19,184.39
  6. Step 6: Final answer
    x = 12,138.32

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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.