Home / 8,940.14-12,327.67-5,581.75

Finding the Fourth Proportional to 8,940.14, 12,327.67 and 5,581.75

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Solution

The fourth proportional to 8,940.14, 12,327.67 and 5,581.75 is: 7,696.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.14 : 12,327.67 = 5,581.75 : x
  2. Step 2: Convert to fraction form
    8,940.14/12,327.67 = 5,581.75/x
  3. Step 3: Cross multiply
    8,940.14x = 12,327.67 × 5,581.75
  4. Step 4: Simplify right side
    8,940.14x = 68,809,972.02
  5. Step 5: Solve for x
    x = 68,809,972.02/8,940.14
  6. Step 6: Final answer
    x = 7,696.74

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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.