Home / 7,933.15-11,891.12-5,161.79

Finding the Fourth Proportional to 7,933.15, 11,891.12 and 5,161.79

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Solution

The fourth proportional to 7,933.15, 11,891.12 and 5,161.79 is: 7,737.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,933.15 : 11,891.12 = 5,161.79 : x
  2. Step 2: Convert to fraction form
    7,933.15/11,891.12 = 5,161.79/x
  3. Step 3: Cross multiply
    7,933.15x = 11,891.12 × 5,161.79
  4. Step 4: Simplify right side
    7,933.15x = 61,379,438.50
  5. Step 5: Solve for x
    x = 61,379,438.50/7,933.15
  6. Step 6: Final answer
    x = 7,737.09

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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.