Home / 11,015.74-16,520.11-3,618.48

Finding the Fourth Proportional to 11,015.74, 16,520.11 and 3,618.48

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Solution

The fourth proportional to 11,015.74, 16,520.11 and 3,618.48 is: 5,426.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,015.74 : 16,520.11 = 3,618.48 : x
  2. Step 2: Convert to fraction form
    11,015.74/16,520.11 = 3,618.48/x
  3. Step 3: Cross multiply
    11,015.74x = 16,520.11 × 3,618.48
  4. Step 4: Simplify right side
    11,015.74x = 59,777,740.54
  5. Step 5: Solve for x
    x = 59,777,740.54/11,015.74
  6. Step 6: Final answer
    x = 5,426.57

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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.