Home / 8,687.18-11,974.42-6,164.03

Finding the Fourth Proportional to 8,687.18, 11,974.42 and 6,164.03

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Solution

The fourth proportional to 8,687.18, 11,974.42 and 6,164.03 is: 8,496.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.18 : 11,974.42 = 6,164.03 : x
  2. Step 2: Convert to fraction form
    8,687.18/11,974.42 = 6,164.03/x
  3. Step 3: Cross multiply
    8,687.18x = 11,974.42 × 6,164.03
  4. Step 4: Simplify right side
    8,687.18x = 73,810,684.11
  5. Step 5: Solve for x
    x = 73,810,684.11/8,687.18
  6. Step 6: Final answer
    x = 8,496.51

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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.