Home / 8,628.09-12,939.64-3,361.93

Finding the Fourth Proportional to 8,628.09, 12,939.64 and 3,361.93

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Solution

The fourth proportional to 8,628.09, 12,939.64 and 3,361.93 is: 5,041.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,628.09 : 12,939.64 = 3,361.93 : x
  2. Step 2: Convert to fraction form
    8,628.09/12,939.64 = 3,361.93/x
  3. Step 3: Cross multiply
    8,628.09x = 12,939.64 × 3,361.93
  4. Step 4: Simplify right side
    8,628.09x = 43,502,169.00
  5. Step 5: Solve for x
    x = 43,502,169.00/8,628.09
  6. Step 6: Final answer
    x = 5,041.92

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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.