Home / 18,212.79-25,134.82-11,043.39

Finding the Fourth Proportional to 18,212.79, 25,134.82 and 11,043.39

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Solution

The fourth proportional to 18,212.79, 25,134.82 and 11,043.39 is: 15,240.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,212.79 : 25,134.82 = 11,043.39 : x
  2. Step 2: Convert to fraction form
    18,212.79/25,134.82 = 11,043.39/x
  3. Step 3: Cross multiply
    18,212.79x = 25,134.82 × 11,043.39
  4. Step 4: Simplify right side
    18,212.79x = 277,573,686.49
  5. Step 5: Solve for x
    x = 277,573,686.49/18,212.79
  6. Step 6: Final answer
    x = 15,240.59

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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.