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Finding the Fourth Proportional to 12,314.80, 16,994.30 and 6,725.80

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Solution

The fourth proportional to 12,314.80, 16,994.30 and 6,725.80 is: 9,281.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,314.80 : 16,994.30 = 6,725.80 : x
  2. Step 2: Convert to fraction form
    12,314.80/16,994.30 = 6,725.80/x
  3. Step 3: Cross multiply
    12,314.80x = 16,994.30 × 6,725.80
  4. Step 4: Simplify right side
    12,314.80x = 114,300,262.94
  5. Step 5: Solve for x
    x = 114,300,262.94/12,314.80
  6. Step 6: Final answer
    x = 9,281.54

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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.