Home / 7,704.09-11,555.24-2,157.88

Finding the Fourth Proportional to 7,704.09, 11,555.24 and 2,157.88

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Solution

The fourth proportional to 7,704.09, 11,555.24 and 2,157.88 is: 3,236.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,704.09 : 11,555.24 = 2,157.88 : x
  2. Step 2: Convert to fraction form
    7,704.09/11,555.24 = 2,157.88/x
  3. Step 3: Cross multiply
    7,704.09x = 11,555.24 × 2,157.88
  4. Step 4: Simplify right side
    7,704.09x = 24,934,821.29
  5. Step 5: Solve for x
    x = 24,934,821.29/7,704.09
  6. Step 6: Final answer
    x = 3,236.57

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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.