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Finding the Fourth Proportional to 12,351.72, 17,048.02 and 7,874.44

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Solution

The fourth proportional to 12,351.72, 17,048.02 and 7,874.44 is: 10,868.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,351.72 : 17,048.02 = 7,874.44 : x
  2. Step 2: Convert to fraction form
    12,351.72/17,048.02 = 7,874.44/x
  3. Step 3: Cross multiply
    12,351.72x = 17,048.02 × 7,874.44
  4. Step 4: Simplify right side
    12,351.72x = 134,243,610.61
  5. Step 5: Solve for x
    x = 134,243,610.61/12,351.72
  6. Step 6: Final answer
    x = 10,868.41

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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.