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Finding the Fourth Proportional to 12,169.58, 18,253.15 and 3,404.57

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Solution

The fourth proportional to 12,169.58, 18,253.15 and 3,404.57 is: 5,106.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,169.58 : 18,253.15 = 3,404.57 : x
  2. Step 2: Convert to fraction form
    12,169.58/18,253.15 = 3,404.57/x
  3. Step 3: Cross multiply
    12,169.58x = 18,253.15 × 3,404.57
  4. Step 4: Simplify right side
    12,169.58x = 62,144,027.12
  5. Step 5: Solve for x
    x = 62,144,027.12/12,169.58
  6. Step 6: Final answer
    x = 5,106.51

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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.