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Finding the Fourth Proportional to 6,651.15, 9,968.94 and 4,276.20

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Solution

The fourth proportional to 6,651.15, 9,968.94 and 4,276.20 is: 6,409.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,651.15 : 9,968.94 = 4,276.20 : x
  2. Step 2: Convert to fraction form
    6,651.15/9,968.94 = 4,276.20/x
  3. Step 3: Cross multiply
    6,651.15x = 9,968.94 × 4,276.20
  4. Step 4: Simplify right side
    6,651.15x = 42,629,181.23
  5. Step 5: Solve for x
    x = 42,629,181.23/6,651.15
  6. Step 6: Final answer
    x = 6,409.29

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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.