Home / 8,381.32-12,571.99-2,141.35

Finding the Fourth Proportional to 8,381.32, 12,571.99 and 2,141.35

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Solution

The fourth proportional to 8,381.32, 12,571.99 and 2,141.35 is: 3,212.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,381.32 : 12,571.99 = 2,141.35 : x
  2. Step 2: Convert to fraction form
    8,381.32/12,571.99 = 2,141.35/x
  3. Step 3: Cross multiply
    8,381.32x = 12,571.99 × 2,141.35
  4. Step 4: Simplify right side
    8,381.32x = 26,921,020.08
  5. Step 5: Solve for x
    x = 26,921,020.08/8,381.32
  6. Step 6: Final answer
    x = 3,212.03

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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.