Home / 12,644.94-18,871.26-11,243.70

Finding the Fourth Proportional to 12,644.94, 18,871.26 and 11,243.70

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Solution

The fourth proportional to 12,644.94, 18,871.26 and 11,243.70 is: 16,780.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,644.94 : 18,871.26 = 11,243.70 : x
  2. Step 2: Convert to fraction form
    12,644.94/18,871.26 = 11,243.70/x
  3. Step 3: Cross multiply
    12,644.94x = 18,871.26 × 11,243.70
  4. Step 4: Simplify right side
    12,644.94x = 212,182,786.06
  5. Step 5: Solve for x
    x = 212,182,786.06/12,644.94
  6. Step 6: Final answer
    x = 16,780.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.