Home / 8,250.12-12,375.57-2,703.78

Finding the Fourth Proportional to 8,250.12, 12,375.57 and 2,703.78

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Solution

The fourth proportional to 8,250.12, 12,375.57 and 2,703.78 is: 4,055.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,250.12 : 12,375.57 = 2,703.78 : x
  2. Step 2: Convert to fraction form
    8,250.12/12,375.57 = 2,703.78/x
  3. Step 3: Cross multiply
    8,250.12x = 12,375.57 × 2,703.78
  4. Step 4: Simplify right side
    8,250.12x = 33,460,818.65
  5. Step 5: Solve for x
    x = 33,460,818.65/8,250.12
  6. Step 6: Final answer
    x = 4,055.80

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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.