Home / 8,381.24-12,571.84-2,141.26

Finding the Fourth Proportional to 8,381.24, 12,571.84 and 2,141.26

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Solution

The fourth proportional to 8,381.24, 12,571.84 and 2,141.26 is: 3,211.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,381.24 : 12,571.84 = 2,141.26 : x
  2. Step 2: Convert to fraction form
    8,381.24/12,571.84 = 2,141.26/x
  3. Step 3: Cross multiply
    8,381.24x = 12,571.84 × 2,141.26
  4. Step 4: Simplify right side
    8,381.24x = 26,919,541.34
  5. Step 5: Solve for x
    x = 26,919,541.34/8,381.24
  6. Step 6: Final answer
    x = 3,211.88

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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.