Home / 15,076.54-20,781.66-11,884.66

Finding the Fourth Proportional to 15,076.54, 20,781.66 and 11,884.66

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Solution

The fourth proportional to 15,076.54, 20,781.66 and 11,884.66 is: 16,381.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,076.54 : 20,781.66 = 11,884.66 : x
  2. Step 2: Convert to fraction form
    15,076.54/20,781.66 = 11,884.66/x
  3. Step 3: Cross multiply
    15,076.54x = 20,781.66 × 11,884.66
  4. Step 4: Simplify right side
    15,076.54x = 246,982,963.34
  5. Step 5: Solve for x
    x = 246,982,963.34/15,076.54
  6. Step 6: Final answer
    x = 16,381.94

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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.