Home / 12,687.49-19,033.56-4,253.17

Finding the Fourth Proportional to 12,687.49, 19,033.56 and 4,253.17

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Solution

The fourth proportional to 12,687.49, 19,033.56 and 4,253.17 is: 6,380.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687.49 : 19,033.56 = 4,253.17 : x
  2. Step 2: Convert to fraction form
    12,687.49/19,033.56 = 4,253.17/x
  3. Step 3: Cross multiply
    12,687.49x = 19,033.56 × 4,253.17
  4. Step 4: Simplify right side
    12,687.49x = 80,952,906.94
  5. Step 5: Solve for x
    x = 80,952,906.94/12,687.49
  6. Step 6: Final answer
    x = 6,380.53

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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.