Home / 12,454.65-18,679.82-4,134.33

Finding the Fourth Proportional to 12,454.65, 18,679.82 and 4,134.33

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Solution

The fourth proportional to 12,454.65, 18,679.82 and 4,134.33 is: 6,200.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,454.65 : 18,679.82 = 4,134.33 : x
  2. Step 2: Convert to fraction form
    12,454.65/18,679.82 = 4,134.33/x
  3. Step 3: Cross multiply
    12,454.65x = 18,679.82 × 4,134.33
  4. Step 4: Simplify right side
    12,454.65x = 77,228,519.55
  5. Step 5: Solve for x
    x = 77,228,519.55/12,454.65
  6. Step 6: Final answer
    x = 6,200.78

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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.