Home / 21,274.62-29,360-11,843.18

Finding the Fourth Proportional to 21,274.62, 29,360 and 11,843.18

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Solution

The fourth proportional to 21,274.62, 29,360 and 11,843.18 is: 16,344.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,274.62 : 29,360 = 11,843.18 : x
  2. Step 2: Convert to fraction form
    21,274.62/29,360 = 11,843.18/x
  3. Step 3: Cross multiply
    21,274.62x = 29,360 × 11,843.18
  4. Step 4: Simplify right side
    21,274.62x = 347,715,764.80
  5. Step 5: Solve for x
    x = 347,715,764.80/21,274.62
  6. Step 6: Final answer
    x = 16,344.16

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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.