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Finding the Fourth Proportional to 12,110.52, 18,154.84 and 4,317.52

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Solution

The fourth proportional to 12,110.52, 18,154.84 and 4,317.52 is: 6,472.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,110.52 : 18,154.84 = 4,317.52 : x
  2. Step 2: Convert to fraction form
    12,110.52/18,154.84 = 4,317.52/x
  3. Step 3: Cross multiply
    12,110.52x = 18,154.84 × 4,317.52
  4. Step 4: Simplify right side
    12,110.52x = 78,383,884.80
  5. Step 5: Solve for x
    x = 78,383,884.80/12,110.52
  6. Step 6: Final answer
    x = 6,472.38

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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.