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Finding the Fourth Proportional to 12,616.54, 18,910.23 and 7,353.34

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Solution

The fourth proportional to 12,616.54, 18,910.23 and 7,353.34 is: 11,021.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,616.54 : 18,910.23 = 7,353.34 : x
  2. Step 2: Convert to fraction form
    12,616.54/18,910.23 = 7,353.34/x
  3. Step 3: Cross multiply
    12,616.54x = 18,910.23 × 7,353.34
  4. Step 4: Simplify right side
    12,616.54x = 139,053,350.67
  5. Step 5: Solve for x
    x = 139,053,350.67/12,616.54
  6. Step 6: Final answer
    x = 11,021.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.