Home / 27,115.36-40,679.42-8,647.36

Finding the Fourth Proportional to 27,115.36, 40,679.42 and 8,647.36

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Solution

The fourth proportional to 27,115.36, 40,679.42 and 8,647.36 is: 12,973.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,115.36 : 40,679.42 = 8,647.36 : x
  2. Step 2: Convert to fraction form
    27,115.36/40,679.42 = 8,647.36/x
  3. Step 3: Cross multiply
    27,115.36x = 40,679.42 × 8,647.36
  4. Step 4: Simplify right side
    27,115.36x = 351,769,589.33
  5. Step 5: Solve for x
    x = 351,769,589.33/27,115.36
  6. Step 6: Final answer
    x = 12,973.07

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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.