Home / 27,115.38-40,663.55-8,134.36

Finding the Fourth Proportional to 27,115.38, 40,663.55 and 8,134.36

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Solution

The fourth proportional to 27,115.38, 40,663.55 and 8,134.36 is: 12,198.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,115.38 : 40,663.55 = 8,134.36 : x
  2. Step 2: Convert to fraction form
    27,115.38/40,663.55 = 8,134.36/x
  3. Step 3: Cross multiply
    27,115.38x = 40,663.55 × 8,134.36
  4. Step 4: Simplify right side
    27,115.38x = 330,771,812.25
  5. Step 5: Solve for x
    x = 330,771,812.25/27,115.38
  6. Step 6: Final answer
    x = 12,198.68

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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.