Home / 11,992.38-18,001.56-5,071.74

Finding the Fourth Proportional to 11,992.38, 18,001.56 and 5,071.74

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Solution

The fourth proportional to 11,992.38, 18,001.56 and 5,071.74 is: 7,613.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,992.38 : 18,001.56 = 5,071.74 : x
  2. Step 2: Convert to fraction form
    11,992.38/18,001.56 = 5,071.74/x
  3. Step 3: Cross multiply
    11,992.38x = 18,001.56 × 5,071.74
  4. Step 4: Simplify right side
    11,992.38x = 91,299,231.91
  5. Step 5: Solve for x
    x = 91,299,231.91/11,992.38
  6. Step 6: Final answer
    x = 7,613.10

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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.