Home / 8,130.24-12,191.04-3,199.68

Finding the Fourth Proportional to 8,130.24, 12,191.04 and 3,199.68

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Solution

The fourth proportional to 8,130.24, 12,191.04 and 3,199.68 is: 4,797.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.24 : 12,191.04 = 3,199.68 : x
  2. Step 2: Convert to fraction form
    8,130.24/12,191.04 = 3,199.68/x
  3. Step 3: Cross multiply
    8,130.24x = 12,191.04 × 3,199.68
  4. Step 4: Simplify right side
    8,130.24x = 39,007,426.87
  5. Step 5: Solve for x
    x = 39,007,426.87/8,130.24
  6. Step 6: Final answer
    x = 4,797.82

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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.