Home / 26,638.20-39,962.97-7,918.29

Finding the Fourth Proportional to 26,638.20, 39,962.97 and 7,918.29

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Solution

The fourth proportional to 26,638.20, 39,962.97 and 7,918.29 is: 11,879.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,638.20 : 39,962.97 = 7,918.29 : x
  2. Step 2: Convert to fraction form
    26,638.20/39,962.97 = 7,918.29/x
  3. Step 3: Cross multiply
    26,638.20x = 39,962.97 × 7,918.29
  4. Step 4: Simplify right side
    26,638.20x = 316,438,385.72
  5. Step 5: Solve for x
    x = 316,438,385.72/26,638.20
  6. Step 6: Final answer
    x = 11,879.12

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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.