Home / 13,455.01-20,177.86-5,137.37

Finding the Fourth Proportional to 13,455.01, 20,177.86 and 5,137.37

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Solution

The fourth proportional to 13,455.01, 20,177.86 and 5,137.37 is: 7,704.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.01 : 20,177.86 = 5,137.37 : x
  2. Step 2: Convert to fraction form
    13,455.01/20,177.86 = 5,137.37/x
  3. Step 3: Cross multiply
    13,455.01x = 20,177.86 × 5,137.37
  4. Step 4: Simplify right side
    13,455.01x = 103,661,217.70
  5. Step 5: Solve for x
    x = 103,661,217.70/13,455.01
  6. Step 6: Final answer
    x = 7,704.28

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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.