Home / 8,125.30-12,189.44-2,580.04

Finding the Fourth Proportional to 8,125.30, 12,189.44 and 2,580.04

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Solution

The fourth proportional to 8,125.30, 12,189.44 and 2,580.04 is: 3,870.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.30 : 12,189.44 = 2,580.04 : x
  2. Step 2: Convert to fraction form
    8,125.30/12,189.44 = 2,580.04/x
  3. Step 3: Cross multiply
    8,125.30x = 12,189.44 × 2,580.04
  4. Step 4: Simplify right side
    8,125.30x = 31,449,229.88
  5. Step 5: Solve for x
    x = 31,449,229.88/8,125.30
  6. Step 6: Final answer
    x = 3,870.53

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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.