Home / 11,721.12-16,174.48-6,414.88

Finding the Fourth Proportional to 11,721.12, 16,174.48 and 6,414.88

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Solution

The fourth proportional to 11,721.12, 16,174.48 and 6,414.88 is: 8,852.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,721.12 : 16,174.48 = 6,414.88 : x
  2. Step 2: Convert to fraction form
    11,721.12/16,174.48 = 6,414.88/x
  3. Step 3: Cross multiply
    11,721.12x = 16,174.48 × 6,414.88
  4. Step 4: Simplify right side
    11,721.12x = 103,757,348.26
  5. Step 5: Solve for x
    x = 103,757,348.26/11,721.12
  6. Step 6: Final answer
    x = 8,852.17

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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.