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Finding the Fourth Proportional to 8,507.03, 12,758.72 and 2,662.88

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Solution

The fourth proportional to 8,507.03, 12,758.72 and 2,662.88 is: 3,993.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,507.03 : 12,758.72 = 2,662.88 : x
  2. Step 2: Convert to fraction form
    8,507.03/12,758.72 = 2,662.88/x
  3. Step 3: Cross multiply
    8,507.03x = 12,758.72 × 2,662.88
  4. Step 4: Simplify right side
    8,507.03x = 33,974,863.21
  5. Step 5: Solve for x
    x = 33,974,863.21/8,507.03
  6. Step 6: Final answer
    x = 3,993.74

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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.