Home / 12,279.82-16,946.14-6,690.82

Finding the Fourth Proportional to 12,279.82, 16,946.14 and 6,690.82

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Solution

The fourth proportional to 12,279.82, 16,946.14 and 6,690.82 is: 9,233.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,279.82 : 16,946.14 = 6,690.82 : x
  2. Step 2: Convert to fraction form
    12,279.82/16,946.14 = 6,690.82/x
  3. Step 3: Cross multiply
    12,279.82x = 16,946.14 × 6,690.82
  4. Step 4: Simplify right side
    12,279.82x = 113,383,572.43
  5. Step 5: Solve for x
    x = 113,383,572.43/12,279.82
  6. Step 6: Final answer
    x = 9,233.33

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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.