Home / 6,811.72-10,217.58-3,113.87

Finding the Fourth Proportional to 6,811.72, 10,217.58 and 3,113.87

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Solution

The fourth proportional to 6,811.72, 10,217.58 and 3,113.87 is: 4,670.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,811.72 : 10,217.58 = 3,113.87 : x
  2. Step 2: Convert to fraction form
    6,811.72/10,217.58 = 3,113.87/x
  3. Step 3: Cross multiply
    6,811.72x = 10,217.58 × 3,113.87
  4. Step 4: Simplify right side
    6,811.72x = 31,816,153.07
  5. Step 5: Solve for x
    x = 31,816,153.07/6,811.72
  6. Step 6: Final answer
    x = 4,670.80

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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.