Home / 11,151.90-16,738.79-8,494.70

Finding the Fourth Proportional to 11,151.90, 16,738.79 and 8,494.70

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Solution

The fourth proportional to 11,151.90, 16,738.79 and 8,494.70 is: 12,750.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,151.90 : 16,738.79 = 8,494.70 : x
  2. Step 2: Convert to fraction form
    11,151.90/16,738.79 = 8,494.70/x
  3. Step 3: Cross multiply
    11,151.90x = 16,738.79 × 8,494.70
  4. Step 4: Simplify right side
    11,151.90x = 142,190,873.25
  5. Step 5: Solve for x
    x = 142,190,873.25/11,151.90
  6. Step 6: Final answer
    x = 12,750.37

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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.