Home / 12,279.88-16,946.34-6,691.24

Finding the Fourth Proportional to 12,279.88, 16,946.34 and 6,691.24

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Solution

The fourth proportional to 12,279.88, 16,946.34 and 6,691.24 is: 9,233.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,279.88 : 16,946.34 = 6,691.24 : x
  2. Step 2: Convert to fraction form
    12,279.88/16,946.34 = 6,691.24/x
  3. Step 3: Cross multiply
    12,279.88x = 16,946.34 × 6,691.24
  4. Step 4: Simplify right side
    12,279.88x = 113,392,028.06
  5. Step 5: Solve for x
    x = 113,392,028.06/12,279.88
  6. Step 6: Final answer
    x = 9,233.97

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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.