Home / 12,276.97-18,403.12-3,950.87

Finding the Fourth Proportional to 12,276.97, 18,403.12 and 3,950.87

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Solution

The fourth proportional to 12,276.97, 18,403.12 and 3,950.87 is: 5,922.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276.97 : 18,403.12 = 3,950.87 : x
  2. Step 2: Convert to fraction form
    12,276.97/18,403.12 = 3,950.87/x
  3. Step 3: Cross multiply
    12,276.97x = 18,403.12 × 3,950.87
  4. Step 4: Simplify right side
    12,276.97x = 72,708,247.64
  5. Step 5: Solve for x
    x = 72,708,247.64/12,276.97
  6. Step 6: Final answer
    x = 5,922.33

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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.