Home / 12,996.32-19,487.79-4,230.09

Finding the Fourth Proportional to 12,996.32, 19,487.79 and 4,230.09

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Solution

The fourth proportional to 12,996.32, 19,487.79 and 4,230.09 is: 6,342.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,996.32 : 19,487.79 = 4,230.09 : x
  2. Step 2: Convert to fraction form
    12,996.32/19,487.79 = 4,230.09/x
  3. Step 3: Cross multiply
    12,996.32x = 19,487.79 × 4,230.09
  4. Step 4: Simplify right side
    12,996.32x = 82,435,105.60
  5. Step 5: Solve for x
    x = 82,435,105.60/12,996.32
  6. Step 6: Final answer
    x = 6,342.96

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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.