Home / 12,589.98-18,883.66-4,269.78

Finding the Fourth Proportional to 12,589.98, 18,883.66 and 4,269.78

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Solution

The fourth proportional to 12,589.98, 18,883.66 and 4,269.78 is: 6,404.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,589.98 : 18,883.66 = 4,269.78 : x
  2. Step 2: Convert to fraction form
    12,589.98/18,883.66 = 4,269.78/x
  3. Step 3: Cross multiply
    12,589.98x = 18,883.66 × 4,269.78
  4. Step 4: Simplify right side
    12,589.98x = 80,629,073.79
  5. Step 5: Solve for x
    x = 80,629,073.79/12,589.98
  6. Step 6: Final answer
    x = 6,404.23

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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.