Home / 8,305.12-12,458.13-2,758.49

Finding the Fourth Proportional to 8,305.12, 12,458.13 and 2,758.49

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Solution

The fourth proportional to 8,305.12, 12,458.13 and 2,758.49 is: 4,137.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305.12 : 12,458.13 = 2,758.49 : x
  2. Step 2: Convert to fraction form
    8,305.12/12,458.13 = 2,758.49/x
  3. Step 3: Cross multiply
    8,305.12x = 12,458.13 × 2,758.49
  4. Step 4: Simplify right side
    8,305.12x = 34,365,627.02
  5. Step 5: Solve for x
    x = 34,365,627.02/8,305.12
  6. Step 6: Final answer
    x = 4,137.88

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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.