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Finding the Fourth Proportional to 18,878, 26,013.22 and 14,603.09

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Solution

The fourth proportional to 18,878, 26,013.22 and 14,603.09 is: 20,122.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,878 : 26,013.22 = 14,603.09 : x
  2. Step 2: Convert to fraction form
    18,878/26,013.22 = 14,603.09/x
  3. Step 3: Cross multiply
    18,878x = 26,013.22 × 14,603.09
  4. Step 4: Simplify right side
    18,878x = 379,873,392.85
  5. Step 5: Solve for x
    x = 379,873,392.85/18,878
  6. Step 6: Final answer
    x = 20,122.54

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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.