Home / 21,194.72-29,247.36-11,763.28

Finding the Fourth Proportional to 21,194.72, 29,247.36 and 11,763.28

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Solution

The fourth proportional to 21,194.72, 29,247.36 and 11,763.28 is: 16,232.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,194.72 : 29,247.36 = 11,763.28 : x
  2. Step 2: Convert to fraction form
    21,194.72/29,247.36 = 11,763.28/x
  3. Step 3: Cross multiply
    21,194.72x = 29,247.36 × 11,763.28
  4. Step 4: Simplify right side
    21,194.72x = 344,044,884.94
  5. Step 5: Solve for x
    x = 344,044,884.94/21,194.72
  6. Step 6: Final answer
    x = 16,232.58

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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.