Home / 12,170.08-18,255.14-3,404.96

Finding the Fourth Proportional to 12,170.08, 18,255.14 and 3,404.96

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Solution

The fourth proportional to 12,170.08, 18,255.14 and 3,404.96 is: 5,107.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,170.08 : 18,255.14 = 3,404.96 : x
  2. Step 2: Convert to fraction form
    12,170.08/18,255.14 = 3,404.96/x
  3. Step 3: Cross multiply
    12,170.08x = 18,255.14 × 3,404.96
  4. Step 4: Simplify right side
    12,170.08x = 62,158,021.49
  5. Step 5: Solve for x
    x = 62,158,021.49/12,170.08
  6. Step 6: Final answer
    x = 5,107.45

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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.