Home / 8,169.15-12,253.79-2,622.51

Finding the Fourth Proportional to 8,169.15, 12,253.79 and 2,622.51

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Solution

The fourth proportional to 8,169.15, 12,253.79 and 2,622.51 is: 3,933.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.15 : 12,253.79 = 2,622.51 : x
  2. Step 2: Convert to fraction form
    8,169.15/12,253.79 = 2,622.51/x
  3. Step 3: Cross multiply
    8,169.15x = 12,253.79 × 2,622.51
  4. Step 4: Simplify right side
    8,169.15x = 32,135,686.81
  5. Step 5: Solve for x
    x = 32,135,686.81/8,169.15
  6. Step 6: Final answer
    x = 3,933.79

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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.