Home / 13,249.55-19,874.22-3,388.80

Finding the Fourth Proportional to 13,249.55, 19,874.22 and 3,388.80

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Solution

The fourth proportional to 13,249.55, 19,874.22 and 3,388.80 is: 5,083.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.55 : 19,874.22 = 3,388.80 : x
  2. Step 2: Convert to fraction form
    13,249.55/19,874.22 = 3,388.80/x
  3. Step 3: Cross multiply
    13,249.55x = 19,874.22 × 3,388.80
  4. Step 4: Simplify right side
    13,249.55x = 67,349,756.74
  5. Step 5: Solve for x
    x = 67,349,756.74/13,249.55
  6. Step 6: Final answer
    x = 5,083.18

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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.