Home / 8,130.35-12,197.70-3,450.56

Finding the Fourth Proportional to 8,130.35, 12,197.70 and 3,450.56

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Solution

The fourth proportional to 8,130.35, 12,197.70 and 3,450.56 is: 5,176.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.35 : 12,197.70 = 3,450.56 : x
  2. Step 2: Convert to fraction form
    8,130.35/12,197.70 = 3,450.56/x
  3. Step 3: Cross multiply
    8,130.35x = 12,197.70 × 3,450.56
  4. Step 4: Simplify right side
    8,130.35x = 42,088,834.72
  5. Step 5: Solve for x
    x = 42,088,834.72/8,130.35
  6. Step 6: Final answer
    x = 5,176.76

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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.