Home / 9,118.62-12,591.99-6,876.66

Finding the Fourth Proportional to 9,118.62, 12,591.99 and 6,876.66

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Solution

The fourth proportional to 9,118.62, 12,591.99 and 6,876.66 is: 9,496.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.62 : 12,591.99 = 6,876.66 : x
  2. Step 2: Convert to fraction form
    9,118.62/12,591.99 = 6,876.66/x
  3. Step 3: Cross multiply
    9,118.62x = 12,591.99 × 6,876.66
  4. Step 4: Simplify right side
    9,118.62x = 86,590,833.95
  5. Step 5: Solve for x
    x = 86,590,833.95/9,118.62
  6. Step 6: Final answer
    x = 9,496.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.