Home / 13,455.50-20,180.27-5,132.60

Finding the Fourth Proportional to 13,455.50, 20,180.27 and 5,132.60

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Solution

The fourth proportional to 13,455.50, 20,180.27 and 5,132.60 is: 7,697.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.50 : 20,180.27 = 5,132.60 : x
  2. Step 2: Convert to fraction form
    13,455.50/20,180.27 = 5,132.60/x
  3. Step 3: Cross multiply
    13,455.50x = 20,180.27 × 5,132.60
  4. Step 4: Simplify right side
    13,455.50x = 103,577,127.24
  5. Step 5: Solve for x
    x = 103,577,127.24/13,455.50
  6. Step 6: Final answer
    x = 7,697.76

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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.