Home / 8,178.80-12,268.04-2,632.56

Finding the Fourth Proportional to 8,178.80, 12,268.04 and 2,632.56

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Solution

The fourth proportional to 8,178.80, 12,268.04 and 2,632.56 is: 3,948.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178.80 : 12,268.04 = 2,632.56 : x
  2. Step 2: Convert to fraction form
    8,178.80/12,268.04 = 2,632.56/x
  3. Step 3: Cross multiply
    8,178.80x = 12,268.04 × 2,632.56
  4. Step 4: Simplify right side
    8,178.80x = 32,296,351.38
  5. Step 5: Solve for x
    x = 32,296,351.38/8,178.80
  6. Step 6: Final answer
    x = 3,948.79

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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.