Home / 21,074.89-29,083.94-11,644.06

Finding the Fourth Proportional to 21,074.89, 29,083.94 and 11,644.06

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Solution

The fourth proportional to 21,074.89, 29,083.94 and 11,644.06 is: 16,069.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,074.89 : 29,083.94 = 11,644.06 : x
  2. Step 2: Convert to fraction form
    21,074.89/29,083.94 = 11,644.06/x
  3. Step 3: Cross multiply
    21,074.89x = 29,083.94 × 11,644.06
  4. Step 4: Simplify right side
    21,074.89x = 338,655,142.40
  5. Step 5: Solve for x
    x = 338,655,142.40/21,074.89
  6. Step 6: Final answer
    x = 16,069.13

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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.