Home / 26,918.12-40,374.12-7,198.40

Finding the Fourth Proportional to 26,918.12, 40,374.12 and 7,198.40

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Solution

The fourth proportional to 26,918.12, 40,374.12 and 7,198.40 is: 10,796.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,918.12 : 40,374.12 = 7,198.40 : x
  2. Step 2: Convert to fraction form
    26,918.12/40,374.12 = 7,198.40/x
  3. Step 3: Cross multiply
    26,918.12x = 40,374.12 × 7,198.40
  4. Step 4: Simplify right side
    26,918.12x = 290,629,065.41
  5. Step 5: Solve for x
    x = 290,629,065.41/26,918.12
  6. Step 6: Final answer
    x = 10,796.78

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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.