Home / 8,187.11-12,283.06-2,640.34

Finding the Fourth Proportional to 8,187.11, 12,283.06 and 2,640.34

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Solution

The fourth proportional to 8,187.11, 12,283.06 and 2,640.34 is: 3,961.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,187.11 : 12,283.06 = 2,640.34 : x
  2. Step 2: Convert to fraction form
    8,187.11/12,283.06 = 2,640.34/x
  3. Step 3: Cross multiply
    8,187.11x = 12,283.06 × 2,640.34
  4. Step 4: Simplify right side
    8,187.11x = 32,431,454.64
  5. Step 5: Solve for x
    x = 32,431,454.64/8,187.11
  6. Step 6: Final answer
    x = 3,961.28

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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.