Home / 12,270.30-16,932.64-6,819.35

Finding the Fourth Proportional to 12,270.30, 16,932.64 and 6,819.35

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Solution

The fourth proportional to 12,270.30, 16,932.64 and 6,819.35 is: 9,410.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,270.30 : 16,932.64 = 6,819.35 : x
  2. Step 2: Convert to fraction form
    12,270.30/16,932.64 = 6,819.35/x
  3. Step 3: Cross multiply
    12,270.30x = 16,932.64 × 6,819.35
  4. Step 4: Simplify right side
    12,270.30x = 115,469,479.82
  5. Step 5: Solve for x
    x = 115,469,479.82/12,270.30
  6. Step 6: Final answer
    x = 9,410.49

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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.