Home / 21,714.06-29,965.41-11,778.06

Finding the Fourth Proportional to 21,714.06, 29,965.41 and 11,778.06

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Solution

The fourth proportional to 21,714.06, 29,965.41 and 11,778.06 is: 16,253.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,714.06 : 29,965.41 = 11,778.06 : x
  2. Step 2: Convert to fraction form
    21,714.06/29,965.41 = 11,778.06/x
  3. Step 3: Cross multiply
    21,714.06x = 29,965.41 × 11,778.06
  4. Step 4: Simplify right side
    21,714.06x = 352,934,396.90
  5. Step 5: Solve for x
    x = 352,934,396.90/21,714.06
  6. Step 6: Final answer
    x = 16,253.73

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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.