Home / 21,146.62-29,181.08-11,584.60

Finding the Fourth Proportional to 21,146.62, 29,181.08 and 11,584.60

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Solution

The fourth proportional to 21,146.62, 29,181.08 and 11,584.60 is: 15,986.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,146.62 : 29,181.08 = 11,584.60 : x
  2. Step 2: Convert to fraction form
    21,146.62/29,181.08 = 11,584.60/x
  3. Step 3: Cross multiply
    21,146.62x = 29,181.08 × 11,584.60
  4. Step 4: Simplify right side
    21,146.62x = 338,051,194.36
  5. Step 5: Solve for x
    x = 338,051,194.36/21,146.62
  6. Step 6: Final answer
    x = 15,986.06

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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.