Home / 12,939.88-17,833.35-9,396.94

Finding the Fourth Proportional to 12,939.88, 17,833.35 and 9,396.94

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Solution

The fourth proportional to 12,939.88, 17,833.35 and 9,396.94 is: 12,950.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,939.88 : 17,833.35 = 9,396.94 : x
  2. Step 2: Convert to fraction form
    12,939.88/17,833.35 = 9,396.94/x
  3. Step 3: Cross multiply
    12,939.88x = 17,833.35 × 9,396.94
  4. Step 4: Simplify right side
    12,939.88x = 167,578,919.95
  5. Step 5: Solve for x
    x = 167,578,919.95/12,939.88
  6. Step 6: Final answer
    x = 12,950.58

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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.