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Finding the Fourth Proportional to 8,788.80, 13,181.74 and 3,857.12

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Solution

The fourth proportional to 8,788.80, 13,181.74 and 3,857.12 is: 5,785.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,788.80 : 13,181.74 = 3,857.12 : x
  2. Step 2: Convert to fraction form
    8,788.80/13,181.74 = 3,857.12/x
  3. Step 3: Cross multiply
    8,788.80x = 13,181.74 × 3,857.12
  4. Step 4: Simplify right side
    8,788.80x = 50,843,526.87
  5. Step 5: Solve for x
    x = 50,843,526.87/8,788.80
  6. Step 6: Final answer
    x = 5,785.03

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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.