Home / 12,276.75-16,941.96-6,687.75

Finding the Fourth Proportional to 12,276.75, 16,941.96 and 6,687.75

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Solution

The fourth proportional to 12,276.75, 16,941.96 and 6,687.75 is: 9,229.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276.75 : 16,941.96 = 6,687.75 : x
  2. Step 2: Convert to fraction form
    12,276.75/16,941.96 = 6,687.75/x
  3. Step 3: Cross multiply
    12,276.75x = 16,941.96 × 6,687.75
  4. Step 4: Simplify right side
    12,276.75x = 113,303,592.99
  5. Step 5: Solve for x
    x = 113,303,592.99/12,276.75
  6. Step 6: Final answer
    x = 9,229.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.