Home / 7,704.13-11,555.03-2,156.75

Finding the Fourth Proportional to 7,704.13, 11,555.03 and 2,156.75

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Solution

The fourth proportional to 7,704.13, 11,555.03 and 2,156.75 is: 3,234.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,704.13 : 11,555.03 = 2,156.75 : x
  2. Step 2: Convert to fraction form
    7,704.13/11,555.03 = 2,156.75/x
  3. Step 3: Cross multiply
    7,704.13x = 11,555.03 × 2,156.75
  4. Step 4: Simplify right side
    7,704.13x = 24,921,300.17
  5. Step 5: Solve for x
    x = 24,921,300.17/7,704.13
  6. Step 6: Final answer
    x = 3,234.80

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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.