Home / 11,115.86-16,672.05-3,720.26

Finding the Fourth Proportional to 11,115.86, 16,672.05 and 3,720.26

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Solution

The fourth proportional to 11,115.86, 16,672.05 and 3,720.26 is: 5,579.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.86 : 16,672.05 = 3,720.26 : x
  2. Step 2: Convert to fraction form
    11,115.86/16,672.05 = 3,720.26/x
  3. Step 3: Cross multiply
    11,115.86x = 16,672.05 × 3,720.26
  4. Step 4: Simplify right side
    11,115.86x = 62,024,360.73
  5. Step 5: Solve for x
    x = 62,024,360.73/11,115.86
  6. Step 6: Final answer
    x = 5,579.81

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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.