Home / 12,238.80-16,890.39-6,933.66

Finding the Fourth Proportional to 12,238.80, 16,890.39 and 6,933.66

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Solution

The fourth proportional to 12,238.80, 16,890.39 and 6,933.66 is: 9,568.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,238.80 : 16,890.39 = 6,933.66 : x
  2. Step 2: Convert to fraction form
    12,238.80/16,890.39 = 6,933.66/x
  3. Step 3: Cross multiply
    12,238.80x = 16,890.39 × 6,933.66
  4. Step 4: Simplify right side
    12,238.80x = 117,112,221.53
  5. Step 5: Solve for x
    x = 117,112,221.53/12,238.80
  6. Step 6: Final answer
    x = 9,568.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.