Home / 7,992.12-11,988.56-2,445.49

Finding the Fourth Proportional to 7,992.12, 11,988.56 and 2,445.49

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Solution

The fourth proportional to 7,992.12, 11,988.56 and 2,445.49 is: 3,668.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,992.12 : 11,988.56 = 2,445.49 : x
  2. Step 2: Convert to fraction form
    7,992.12/11,988.56 = 2,445.49/x
  3. Step 3: Cross multiply
    7,992.12x = 11,988.56 × 2,445.49
  4. Step 4: Simplify right side
    7,992.12x = 29,317,910.94
  5. Step 5: Solve for x
    x = 29,317,910.94/7,992.12
  6. Step 6: Final answer
    x = 3,668.35

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Double scale
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Similar ratio
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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.