Home / 21,213.52-29,274.76-11,782.96

Finding the Fourth Proportional to 21,213.52, 29,274.76 and 11,782.96

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Solution

The fourth proportional to 21,213.52, 29,274.76 and 11,782.96 is: 16,260.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,213.52 : 29,274.76 = 11,782.96 : x
  2. Step 2: Convert to fraction form
    21,213.52/29,274.76 = 11,782.96/x
  3. Step 3: Cross multiply
    21,213.52x = 29,274.76 × 11,782.96
  4. Step 4: Simplify right side
    21,213.52x = 344,943,326.09
  5. Step 5: Solve for x
    x = 344,943,326.09/21,213.52
  6. Step 6: Final answer
    x = 16,260.54

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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.