Home / 21,197.88-29,253.56-11,767.05

Finding the Fourth Proportional to 21,197.88, 29,253.56 and 11,767.05

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Solution

The fourth proportional to 21,197.88, 29,253.56 and 11,767.05 is: 16,238.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,197.88 : 29,253.56 = 11,767.05 : x
  2. Step 2: Convert to fraction form
    21,197.88/29,253.56 = 11,767.05/x
  3. Step 3: Cross multiply
    21,197.88x = 29,253.56 × 11,767.05
  4. Step 4: Simplify right side
    21,197.88x = 344,228,044.36
  5. Step 5: Solve for x
    x = 344,228,044.36/21,197.88
  6. Step 6: Final answer
    x = 16,238.80

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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.