Home / 11,278.20-16,917.30-7,341.60

Finding the Fourth Proportional to 11,278.20, 16,917.30 and 7,341.60

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Solution

The fourth proportional to 11,278.20, 16,917.30 and 7,341.60 is: 11,012.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,278.20 : 16,917.30 = 7,341.60 : x
  2. Step 2: Convert to fraction form
    11,278.20/16,917.30 = 7,341.60/x
  3. Step 3: Cross multiply
    11,278.20x = 16,917.30 × 7,341.60
  4. Step 4: Simplify right side
    11,278.20x = 124,200,049.68
  5. Step 5: Solve for x
    x = 124,200,049.68/11,278.20
  6. Step 6: Final answer
    x = 11,012.40

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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.