Home / 12,422.20-17,141.70-6,833.56

Finding the Fourth Proportional to 12,422.20, 17,141.70 and 6,833.56

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Solution

The fourth proportional to 12,422.20, 17,141.70 and 6,833.56 is: 9,429.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,422.20 : 17,141.70 = 6,833.56 : x
  2. Step 2: Convert to fraction form
    12,422.20/17,141.70 = 6,833.56/x
  3. Step 3: Cross multiply
    12,422.20x = 17,141.70 × 6,833.56
  4. Step 4: Simplify right side
    12,422.20x = 117,138,835.45
  5. Step 5: Solve for x
    x = 117,138,835.45/12,422.20
  6. Step 6: Final answer
    x = 9,429.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.