Home / 18,853.89-28,269.21-6,372.73

Finding the Fourth Proportional to 18,853.89, 28,269.21 and 6,372.73

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Solution

The fourth proportional to 18,853.89, 28,269.21 and 6,372.73 is: 9,555.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,853.89 : 28,269.21 = 6,372.73 : x
  2. Step 2: Convert to fraction form
    18,853.89/28,269.21 = 6,372.73/x
  3. Step 3: Cross multiply
    18,853.89x = 28,269.21 × 6,372.73
  4. Step 4: Simplify right side
    18,853.89x = 180,152,010.78
  5. Step 5: Solve for x
    x = 180,152,010.78/18,853.89
  6. Step 6: Final answer
    x = 9,555.16

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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.