Home / 7,161.72-10,759.05-5,086.77

Finding the Fourth Proportional to 7,161.72, 10,759.05 and 5,086.77

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Solution

The fourth proportional to 7,161.72, 10,759.05 and 5,086.77 is: 7,641.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161.72 : 10,759.05 = 5,086.77 : x
  2. Step 2: Convert to fraction form
    7,161.72/10,759.05 = 5,086.77/x
  3. Step 3: Cross multiply
    7,161.72x = 10,759.05 × 5,086.77
  4. Step 4: Simplify right side
    7,161.72x = 54,728,812.77
  5. Step 5: Solve for x
    x = 54,728,812.77/7,161.72
  6. Step 6: Final answer
    x = 7,641.85

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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.