Home / 13,837.21-20,755.75-5,404.57

Finding the Fourth Proportional to 13,837.21, 20,755.75 and 5,404.57

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Solution

The fourth proportional to 13,837.21, 20,755.75 and 5,404.57 is: 8,106.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,837.21 : 20,755.75 = 5,404.57 : x
  2. Step 2: Convert to fraction form
    13,837.21/20,755.75 = 5,404.57/x
  3. Step 3: Cross multiply
    13,837.21x = 20,755.75 × 5,404.57
  4. Step 4: Simplify right side
    13,837.21x = 112,175,980.46
  5. Step 5: Solve for x
    x = 112,175,980.46/13,837.21
  6. Step 6: Final answer
    x = 8,106.83

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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.