Home / 13,404.34-20,113.00-5,512.68

Finding the Fourth Proportional to 13,404.34, 20,113.00 and 5,512.68

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Solution

The fourth proportional to 13,404.34, 20,113.00 and 5,512.68 is: 8,271.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,404.34 : 20,113.00 = 5,512.68 : x
  2. Step 2: Convert to fraction form
    13,404.34/20,113.00 = 5,512.68/x
  3. Step 3: Cross multiply
    13,404.34x = 20,113.00 × 5,512.68
  4. Step 4: Simplify right side
    13,404.34x = 110,876,567.87
  5. Step 5: Solve for x
    x = 110,876,567.87/13,404.34
  6. Step 6: Final answer
    x = 8,271.69

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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.