Home / 18,175.72-25,076.10-11,885.80

Finding the Fourth Proportional to 18,175.72, 25,076.10 and 11,885.80

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Solution

The fourth proportional to 18,175.72, 25,076.10 and 11,885.80 is: 16,398.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,175.72 : 25,076.10 = 11,885.80 : x
  2. Step 2: Convert to fraction form
    18,175.72/25,076.10 = 11,885.80/x
  3. Step 3: Cross multiply
    18,175.72x = 25,076.10 × 11,885.80
  4. Step 4: Simplify right side
    18,175.72x = 298,049,509.38
  5. Step 5: Solve for x
    x = 298,049,509.38/18,175.72
  6. Step 6: Final answer
    x = 16,398.22

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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.