Home / 21,146.07-29,181.54-11,714.64

Finding the Fourth Proportional to 21,146.07, 29,181.54 and 11,714.64

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Solution

The fourth proportional to 21,146.07, 29,181.54 and 11,714.64 is: 16,166.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,146.07 : 29,181.54 = 11,714.64 : x
  2. Step 2: Convert to fraction form
    21,146.07/29,181.54 = 11,714.64/x
  3. Step 3: Cross multiply
    21,146.07x = 29,181.54 × 11,714.64
  4. Step 4: Simplify right side
    21,146.07x = 341,851,235.75
  5. Step 5: Solve for x
    x = 341,851,235.75/21,146.07
  6. Step 6: Final answer
    x = 16,166.18

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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.