Home / 12,996.94-19,496.78-4,230.72

Finding the Fourth Proportional to 12,996.94, 19,496.78 and 4,230.72

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Solution

The fourth proportional to 12,996.94, 19,496.78 and 4,230.72 is: 6,346.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,996.94 : 19,496.78 = 4,230.72 : x
  2. Step 2: Convert to fraction form
    12,996.94/19,496.78 = 4,230.72/x
  3. Step 3: Cross multiply
    12,996.94x = 19,496.78 × 4,230.72
  4. Step 4: Simplify right side
    12,996.94x = 82,485,417.08
  5. Step 5: Solve for x
    x = 82,485,417.08/12,996.94
  6. Step 6: Final answer
    x = 6,346.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.