Home / 26,658.84-39,993.66-7,939.20

Finding the Fourth Proportional to 26,658.84, 39,993.66 and 7,939.20

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Solution

The fourth proportional to 26,658.84, 39,993.66 and 7,939.20 is: 11,910.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,658.84 : 39,993.66 = 7,939.20 : x
  2. Step 2: Convert to fraction form
    26,658.84/39,993.66 = 7,939.20/x
  3. Step 3: Cross multiply
    26,658.84x = 39,993.66 × 7,939.20
  4. Step 4: Simplify right side
    26,658.84x = 317,517,665.47
  5. Step 5: Solve for x
    x = 317,517,665.47/26,658.84
  6. Step 6: Final answer
    x = 11,910.41

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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.