Home / 26,848.06-40,279.38-8,128.72

Finding the Fourth Proportional to 26,848.06, 40,279.38 and 8,128.72

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Solution

The fourth proportional to 26,848.06, 40,279.38 and 8,128.72 is: 12,195.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,848.06 : 40,279.38 = 8,128.72 : x
  2. Step 2: Convert to fraction form
    26,848.06/40,279.38 = 8,128.72/x
  3. Step 3: Cross multiply
    26,848.06x = 40,279.38 × 8,128.72
  4. Step 4: Simplify right side
    26,848.06x = 327,419,821.66
  5. Step 5: Solve for x
    x = 327,419,821.66/26,848.06
  6. Step 6: Final answer
    x = 12,195.29

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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.