Home / 13,206.20-19,787.70-11,262.20

Finding the Fourth Proportional to 13,206.20, 19,787.70 and 11,262.20

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Solution

The fourth proportional to 13,206.20, 19,787.70 and 11,262.20 is: 16,874.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206.20 : 19,787.70 = 11,262.20 : x
  2. Step 2: Convert to fraction form
    13,206.20/19,787.70 = 11,262.20/x
  3. Step 3: Cross multiply
    13,206.20x = 19,787.70 × 11,262.20
  4. Step 4: Simplify right side
    13,206.20x = 222,853,034.94
  5. Step 5: Solve for x
    x = 222,853,034.94/13,206.20
  6. Step 6: Final answer
    x = 16,874.88

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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.