Home / 26,645.39-39,961.26-7,920.57

Finding the Fourth Proportional to 26,645.39, 39,961.26 and 7,920.57

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Solution

The fourth proportional to 26,645.39, 39,961.26 and 7,920.57 is: 11,878.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,645.39 : 39,961.26 = 7,920.57 : x
  2. Step 2: Convert to fraction form
    26,645.39/39,961.26 = 7,920.57/x
  3. Step 3: Cross multiply
    26,645.39x = 39,961.26 × 7,920.57
  4. Step 4: Simplify right side
    26,645.39x = 316,515,957.12
  5. Step 5: Solve for x
    x = 316,515,957.12/26,645.39
  6. Step 6: Final answer
    x = 11,878.83

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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.