Home / 9,211.55-13,818.33-2,638.80

Finding the Fourth Proportional to 9,211.55, 13,818.33 and 2,638.80

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Solution

The fourth proportional to 9,211.55, 13,818.33 and 2,638.80 is: 3,958.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,211.55 : 13,818.33 = 2,638.80 : x
  2. Step 2: Convert to fraction form
    9,211.55/13,818.33 = 2,638.80/x
  3. Step 3: Cross multiply
    9,211.55x = 13,818.33 × 2,638.80
  4. Step 4: Simplify right side
    9,211.55x = 36,463,809.20
  5. Step 5: Solve for x
    x = 36,463,809.20/9,211.55
  6. Step 6: Final answer
    x = 3,958.49

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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.