Home / 27,112.72-40,672.88-8,394.36

Finding the Fourth Proportional to 27,112.72, 40,672.88 and 8,394.36

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Solution

The fourth proportional to 27,112.72, 40,672.88 and 8,394.36 is: 12,592.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,112.72 : 40,672.88 = 8,394.36 : x
  2. Step 2: Convert to fraction form
    27,112.72/40,672.88 = 8,394.36/x
  3. Step 3: Cross multiply
    27,112.72x = 40,672.88 × 8,394.36
  4. Step 4: Simplify right side
    27,112.72x = 341,422,796.96
  5. Step 5: Solve for x
    x = 341,422,796.96/27,112.72
  6. Step 6: Final answer
    x = 12,592.72

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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.