Home / 13,784.07-20,676.11-3,395.82

Finding the Fourth Proportional to 13,784.07, 20,676.11 and 3,395.82

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Solution

The fourth proportional to 13,784.07, 20,676.11 and 3,395.82 is: 5,093.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784.07 : 20,676.11 = 3,395.82 : x
  2. Step 2: Convert to fraction form
    13,784.07/20,676.11 = 3,395.82/x
  3. Step 3: Cross multiply
    13,784.07x = 20,676.11 × 3,395.82
  4. Step 4: Simplify right side
    13,784.07x = 70,212,347.86
  5. Step 5: Solve for x
    x = 70,212,347.86/13,784.07
  6. Step 6: Final answer
    x = 5,093.73

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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.