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Finding the Fourth Proportional to 8,751.91, 13,127.87 and 3,202.85

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Solution

The fourth proportional to 8,751.91, 13,127.87 and 3,202.85 is: 4,804.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751.91 : 13,127.87 = 3,202.85 : x
  2. Step 2: Convert to fraction form
    8,751.91/13,127.87 = 3,202.85/x
  3. Step 3: Cross multiply
    8,751.91x = 13,127.87 × 3,202.85
  4. Step 4: Simplify right side
    8,751.91x = 42,046,598.43
  5. Step 5: Solve for x
    x = 42,046,598.43/8,751.91
  6. Step 6: Final answer
    x = 4,804.28

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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.