Home / 8,780.80-13,174.24-3,849.76

Finding the Fourth Proportional to 8,780.80, 13,174.24 and 3,849.76

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Solution

The fourth proportional to 8,780.80, 13,174.24 and 3,849.76 is: 5,775.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.80 : 13,174.24 = 3,849.76 : x
  2. Step 2: Convert to fraction form
    8,780.80/13,174.24 = 3,849.76/x
  3. Step 3: Cross multiply
    8,780.80x = 13,174.24 × 3,849.76
  4. Step 4: Simplify right side
    8,780.80x = 50,717,662.18
  5. Step 5: Solve for x
    x = 50,717,662.18/8,780.80
  6. Step 6: Final answer
    x = 5,775.97

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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.