Home / 14,190.35-21,278.43-8,269.29

Finding the Fourth Proportional to 14,190.35, 21,278.43 and 8,269.29

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Solution

The fourth proportional to 14,190.35, 21,278.43 and 8,269.29 is: 12,399.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,190.35 : 21,278.43 = 8,269.29 : x
  2. Step 2: Convert to fraction form
    14,190.35/21,278.43 = 8,269.29/x
  3. Step 3: Cross multiply
    14,190.35x = 21,278.43 × 8,269.29
  4. Step 4: Simplify right side
    14,190.35x = 175,957,508.41
  5. Step 5: Solve for x
    x = 175,957,508.41/14,190.35
  6. Step 6: Final answer
    x = 12,399.80

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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.